11725031 has 4 divisors (see below), whose sum is σ = 11946312. Its totient is φ = 11503752.

The previous prime is 11725001. The next prime is 11725039. The reversal of 11725031 is 13052711.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11725031 - 2²² = 7530727 is a prime.

It is a super-2 number, since 2×11725031² = 274952703901922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11724994 and 11725012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11725039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110561 + ... + 110666.

It is an arithmetic number, because the mean of its divisors is an integer number (2986578).

Almost surely, 2^11725031 is an apocalyptic number.

11725031 is a deficient number, since it is larger than the sum of its proper divisors (221281).

11725031 is an equidigital number, since it uses as much as digits as its factorization.

11725031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221280.

The product of its (nonzero) digits is 210, while the sum is 20.

The square root of 11725031 is about 3424.1832602827. The cubic root of 11725031 is about 227.1806476007.

Adding to 11725031 its reverse (13052711), we get a palindrome (24777742).

The spelling of 11725031 in words is "eleven million, seven hundred twenty-five thousand, thirty-one".