920901431 has 2 divisors, whose sum is σ = 920901432. Its totient is φ = 920901430.

The previous prime is 920901427. The next prime is 920901461. The reversal of 920901431 is 134109029.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 920901431 - 2² = 920901427 is a prime.

It is a super-2 number, since 2×920901431² = 1696118891235695522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 920901394 and 920901403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (920901461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 460450715 + 460450716.

It is an arithmetic number, because the mean of its divisors is an integer number (460450716).

Almost surely, 2^920901431 is an apocalyptic number.

920901431 is a deficient number, since it is larger than the sum of its proper divisors (1).

920901431 is an equidigital number, since it uses as much as digits as its factorization.

920901431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 920901431 is about 30346.3577880444. The cubic root of 920901431 is about 972.9063753246.

The spelling of 920901431 in words is "nine hundred twenty million, nine hundred one thousand, four hundred thirty-one".