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12102023431 is a prime number
BaseRepresentation
bin10110100010101011…
…00011100100000111
31011020102002111012001
423101111203210013
5144241104222211
65320512210131
7605620334101
oct132125434407
934212074161
1012102023431
115150305363
122418b39947
1311ab336314
1482b3b8571
154ac6c4ac1
hex2d1563907

12102023431 has 2 divisors, whose sum is σ = 12102023432. Its totient is φ = 12102023430.

The previous prime is 12102023429. The next prime is 12102023441. The reversal of 12102023431 is 13432020121.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12102023431 - 21 = 12102023429 is a prime.

It is a super-2 number, since 2×121020234312 (a number of 21 digits) contains 22 as substring.

Together with 12102023429, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 12102023399 and 12102023408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12102023441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6051011715 + 6051011716.

It is an arithmetic number, because the mean of its divisors is an integer number (6051011716).

Almost surely, 212102023431 is an apocalyptic number.

12102023431 is a deficient number, since it is larger than the sum of its proper divisors (1).

12102023431 is an equidigital number, since it uses as much as digits as its factorization.

12102023431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 12102023431 its reverse (13432020121), we get a palindrome (25534043552).

The spelling of 12102023431 in words is "twelve billion, one hundred two million, twenty-three thousand, four hundred thirty-one".