123230133731 has 2 divisors, whose sum is σ = 123230133732. Its totient is φ = 123230133730.

The previous prime is 123230133727. The next prime is 123230133787. The reversal of 123230133731 is 137331032321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123230133731 - 2² = 123230133727 is a prime.

It is a super-2 number, since 2×123230133731² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123230133694 and 123230133703.

It is not a weakly prime, because it can be changed into another prime (123230133701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61615066865 + 61615066866.

It is an arithmetic number, because the mean of its divisors is an integer number (61615066866).

Almost surely, 2^123230133731 is an apocalyptic number.

123230133731 is a deficient number, since it is larger than the sum of its proper divisors (1).

123230133731 is an equidigital number, since it uses as much as digits as its factorization.

123230133731 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6804, while the sum is 29.

The spelling of 123230133731 in words is "one hundred twenty-three billion, two hundred thirty million, one hundred thirty-three thousand, seven hundred thirty-one".