1231030232331 has 8 divisors (see below), whose sum is σ = 1658295021264. Its totient is φ = 812226132480.

The previous prime is 1231030232329. The next prime is 1231030232347. The reversal of 1231030232331 is 1332320301321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1231030232331 - 2¹ = 1231030232329 is a prime.

It is a super-2 number, since 2×1231030232331² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1231030232381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2115171930 + ... + 2115172511.

It is an arithmetic number, because the mean of its divisors is an integer number (207286877658).

Almost surely, 2^{1231030232331} is an apocalyptic number.

1231030232331 is a deficient number, since it is larger than the sum of its proper divisors (427264788933).

1231030232331 is an equidigital number, since it uses as much as digits as its factorization.

1231030232331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4230344541.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 1231030232331 its reverse (1332320301321), we get a palindrome (2563350533652).

The spelling of 1231030232331 in words is "one trillion, two hundred thirty-one billion, thirty million, two hundred thirty-two thousand, three hundred thirty-one".