230155031 has 2 divisors, whose sum is σ = 230155032. Its totient is φ = 230155030.

The previous prime is 230155001. The next prime is 230155087. The reversal of 230155031 is 130551032.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 230155031 - 2²² = 225960727 is a prime.

It is a super-2 number, since 2×230155031² = 105942676589221922, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 230154994 and 230155012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230155001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115077515 + 115077516.

It is an arithmetic number, because the mean of its divisors is an integer number (115077516).

Almost surely, 2^230155031 is an apocalyptic number.

230155031 is a deficient number, since it is larger than the sum of its proper divisors (1).

230155031 is an equidigital number, since it uses as much as digits as its factorization.

230155031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 230155031 is about 15170.8612478000. The cubic root of 230155031 is about 612.8301979687.

The spelling of 230155031 in words is "two hundred thirty million, one hundred fifty-five thousand, thirty-one".