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12031213313023 = 19232937239107357
BaseRepresentation
bin1010111100010011110000…
…1100100001101111111111
31120121011122221102200201221
42233010330030201233333
53034104411102004043
641331021343414211
72351140452545062
oct257047414415777
946534587380657
1012031213313023
113919455297973
121423890bb4367
1369370025a988
142d84572208d9
1515ce5d3148ed
hexaf13c321bff

12031213313023 has 64 divisors (see below), whose sum is σ = 14099111424000. Its totient is φ = 10199032994304.

The previous prime is 12031213313017. The next prime is 12031213313033. The reversal of 12031213313023 is 32031331213021.

It is a cyclic number.

It is not a de Polignac number, because 12031213313023 - 241 = 9832190057471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12031213313033) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 112013661 + ... + 112121017.

It is an arithmetic number, because the mean of its divisors is an integer number (220298616000).

Almost surely, 212031213313023 is an apocalyptic number.

12031213313023 is a deficient number, since it is larger than the sum of its proper divisors (2067898110977).

12031213313023 is a wasteful number, since it uses less digits than its factorization.

12031213313023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107704.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 12031213313023 its reverse (32031331213021), we get a palindrome (44062544526044).

The spelling of 12031213313023 in words is "twelve trillion, thirty-one billion, two hundred thirteen million, three hundred thirteen thousand, twenty-three".

Divisors: 1 19 23 29 37 239 437 551 667 703 851 1073 4541 5497 6931 8843 12673 16169 20387 24679 104443 107357 131689 159413 168017 203389 256447 468901 2039783 2469211 3028847 3113353 3864391 3972209 4872493 5898281 25658323 46915009 59153707 71607119 75471971 91360807 112067339 115194061 487508137 590141429 744091367 949357951 1360535261 1735855333 2188687159 2649463403 11212687151 14137735973 17114101441 18037801069 21835232873 27531380579 50339804657 325167927379 414869424587 523096231001 633221753317 12031213313023