231012151 has 2 divisors, whose sum is σ = 231012152. Its totient is φ = 231012150.

The previous prime is 231012143. The next prime is 231012169. The reversal of 231012151 is 151210132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 231012151 - 2³ = 231012143 is a prime.

It is a super-2 number, since 2×231012151² = 106733227819293602, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231012101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115506075 + 115506076.

It is an arithmetic number, because the mean of its divisors is an integer number (115506076).

Almost surely, 2^231012151 is an apocalyptic number.

231012151 is a deficient number, since it is larger than the sum of its proper divisors (1).

231012151 is an equidigital number, since it uses as much as digits as its factorization.

231012151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 231012151 is about 15199.0838868663. The cubic root of 231012151 is about 613.5900022211.

Adding to 231012151 its reverse (151210132), we get a palindrome (382222283).

It can be divided in two parts, 23101 and 2151, that added together give a palindrome (25252).

The spelling of 231012151 in words is "two hundred thirty-one million, twelve thousand, one hundred fifty-one".