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23112131123013 = 369197911133349
BaseRepresentation
bin1010100000101001101100…
…10111011001011101000101
310000211111110011020000122220
411100110312113121131011
511012132121031414023
6121053322204442553
74603540104060042
oct520246627313505
9100744404200586
1023112131123013
11740088853a109
122713351b49459
13cb86069a786a
1459c8c13a61c9
152a12ed8363e3
hex1505365d9745

23112131123013 has 8 divisors (see below), whose sum is σ = 30816222132000. Its totient is φ = 15408063764688.

The previous prime is 23112131122961. The next prime is 23112131123033. The reversal of 23112131123013 is 31032113121132.

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

It is not a de Polignac number, because 23112131123013 - 28 = 23112131122757 is a prime.

It is a super-6 number, since 6×231121311230136 (a number of 81 digits) contains 666666 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23112131123033) 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, 3490738 + ... + 7642611.

It is an arithmetic number, because the mean of its divisors is an integer number (3852027766500).

Almost surely, 223112131123013 is an apocalyptic number.

It is an amenable number.

23112131123013 is a deficient number, since it is larger than the sum of its proper divisors (7704091008987).

23112131123013 is a wasteful number, since it uses less digits than its factorization.

23112131123013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11825331.

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 23112131123013 its reverse (31032113121132), we get a palindrome (54144244244145).

The spelling of 23112131123013 in words is "twenty-three trillion, one hundred twelve billion, one hundred thirty-one million, one hundred twenty-three thousand, thirteen".

Divisors: 1 3 691979 2075937 11133349 33400047 7704043707671 23112131123013