202104121231 has 2 divisors, whose sum is σ = 202104121232. Its totient is φ = 202104121230.

The previous prime is 202104121213. The next prime is 202104121327. The reversal of 202104121231 is 132121401202.

Together with previous prime (202104121213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 202104121231 - 2⁵ = 202104121199 is a prime.

It is a super-2 number, since 2×202104121231² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 202104121199 and 202104121208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202104125231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101052060615 + 101052060616.

It is an arithmetic number, because the mean of its divisors is an integer number (101052060616).

Almost surely, 2^202104121231 is an apocalyptic number.

202104121231 is a deficient number, since it is larger than the sum of its proper divisors (1).

202104121231 is an equidigital number, since it uses as much as digits as its factorization.

202104121231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 202104121231 its reverse (132121401202), we get a palindrome (334225522433).

The spelling of 202104121231 in words is "two hundred two billion, one hundred four million, one hundred twenty-one thousand, two hundred thirty-one".