231056407 has 2 divisors, whose sum is σ = 231056408. Its totient is φ = 231056406.

The previous prime is 231056389. The next prime is 231056417. The reversal of 231056407 is 704650132.

231056407 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 231056407 - 2²³ = 222667799 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231056417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115528203 + 115528204.

It is an arithmetic number, because the mean of its divisors is an integer number (115528204).

Almost surely, 2^231056407 is an apocalyptic number.

231056407 is a deficient number, since it is larger than the sum of its proper divisors (1).

231056407 is an equidigital number, since it uses as much as digits as its factorization.

231056407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 231056407 is about 15200.5396943661. The cubic root of 231056407 is about 613.6291824188.

The spelling of 231056407 in words is "two hundred thirty-one million, fifty-six thousand, four hundred seven".