1240232331 has 32 divisors (see below), whose sum is σ = 1912232448. Its totient is φ = 708180480.

The previous prime is 1240232303. The next prime is 1240232339. The reversal of 1240232331 is 1332320421.

1240232331 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1240232331 - 2¹¹ = 1240230283 is a prime.

It is a super-2 number, since 2×1240232331² = 3076352469715387122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1240232298 and 1240232307.

It is not an unprimeable number, because it can be changed into a prime (1240232339) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33900 + ... + 60246.

It is an arithmetic number, because the mean of its divisors is an integer number (59757264).

Almost surely, 2^1240232331 is an apocalyptic number.

1240232331 is a deficient number, since it is larger than the sum of its proper divisors (672000117).

1240232331 is a wasteful number, since it uses less digits than its factorization.

1240232331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26451.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1240232331 is about 35216.9324473328. The cubic root of 1240232331 is about 1074.4041640586.

Adding to 1240232331 its reverse (1332320421), we get a palindrome (2572552752).

The spelling of 1240232331 in words is "one billion, two hundred forty million, two hundred thirty-two thousand, three hundred thirty-one".