231073369 has 2 divisors, whose sum is σ = 231073370. Its totient is φ = 231073368.

The previous prime is 231073343. The next prime is 231073457. The reversal of 231073369 is 963370132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 132825625 + 98247744 = 11525^2 + 9912^2 .

It is a cyclic number.

It is not a de Polignac number, because 231073369 - 2²¹ = 228976217 is a prime.

It is a super-2 number, since 2×231073369² = 106789803722020322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (231073309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115536684 + 115536685.

It is an arithmetic number, because the mean of its divisors is an integer number (115536685).

Almost surely, 2^231073369 is an apocalyptic number.

It is an amenable number.

231073369 is a deficient number, since it is larger than the sum of its proper divisors (1).

231073369 is an equidigital number, since it uses as much as digits as its factorization.

231073369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20412, while the sum is 34.

The square root of 231073369 is about 15201.0976248428. The cubic root of 231073369 is about 613.6441976896.

The spelling of 231073369 in words is "two hundred thirty-one million, seventy-three thousand, three hundred sixty-nine".