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13212330331031 = 135477185563831
BaseRepresentation
bin1100000001000011110001…
…0000011000101110010111
31201210002100000110221002222
43000100330100120232113
53212432323031043111
644033354420252555
72532362601546356
oct300207420305627
951702300427088
1013212330331031
114234355033117
12159477a84115b
1374abc06c9750
143396a195199d
1517da3a37c7db
hexc043c418b97

13212330331031 has 8 divisors (see below), whose sum is σ = 14231261403744. Its totient is φ = 12193770396960.

The previous prime is 13212330331027. The next prime is 13212330331061. The reversal of 13212330331031 is 13013303321231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13212330331031 - 22 = 13212330331027 is a prime.

It is a super-2 number, since 2×132123303310312 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13212330331061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92710715 + ... + 92853116.

It is an arithmetic number, because the mean of its divisors is an integer number (1778907675468).

Almost surely, 213212330331031 is an apocalyptic number.

13212330331031 is a deficient number, since it is larger than the sum of its proper divisors (1018931072713).

13212330331031 is a wasteful number, since it uses less digits than its factorization.

13212330331031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185569321.

The product of its (nonzero) digits is 2916, while the sum is 26.

Adding to 13212330331031 its reverse (13013303321231), we get a palindrome (26225633652262).

The spelling of 13212330331031 in words is "thirteen trillion, two hundred twelve billion, three hundred thirty million, three hundred thirty-one thousand, thirty-one".

Divisors: 1 13 5477 71201 185563831 2412329803 1016333102387 13212330331031