11431953 has 24 divisors (see below), whose sum is σ = 17908800. Its totient is φ = 6985440.

The previous prime is 11431921. The next prime is 11431957. The reversal of 11431953 is 35913411.

It is not a de Polignac number, because 11431953 - 2⁵ = 11431921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11431957) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23038 + ... + 23528.

It is an arithmetic number, because the mean of its divisors is an integer number (746200).

Almost surely, 2^11431953 is an apocalyptic number.

11431953 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

11431953 is a deficient number, since it is larger than the sum of its proper divisors (6476847).

11431953 is a wasteful number, since it uses less digits than its factorization.

11431953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 709 (or 706 counting only the distinct ones).

The product of its digits is 1620, while the sum is 27.

The square root of 11431953 is about 3381.1171230823. The cubic root of 11431953 is about 225.2717900759.

The spelling of 11431953 in words is "eleven million, four hundred thirty-one thousand, nine hundred fifty-three".