123202010231 has 2 divisors, whose sum is σ = 123202010232. Its totient is φ = 123202010230.

The previous prime is 123202010219. The next prime is 123202010279. The reversal of 123202010231 is 132010202321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123202010231 - 2²² = 123197815927 is a prime.

It is a super-2 number, since 2×123202010231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123202010201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61601005115 + 61601005116.

It is an arithmetic number, because the mean of its divisors is an integer number (61601005116).

Almost surely, 2^123202010231 is an apocalyptic number.

123202010231 is a deficient number, since it is larger than the sum of its proper divisors (1).

123202010231 is an equidigital number, since it uses as much as digits as its factorization.

123202010231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 123202010231 its reverse (132010202321), we get a palindrome (255212212552).

The spelling of 123202010231 in words is "one hundred twenty-three billion, two hundred two million, ten thousand, two hundred thirty-one".