1231320332310 has 32 divisors (see below), whose sum is σ = 2955614532192. Its totient is φ = 328302562560.

The previous prime is 1231320332303. The next prime is 1231320332369. The reversal of 1231320332310 is 132330231321.

It is a super-4 number, since 4×1231320332310⁴ (a number of 49 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2892951 + ... + 3291170.

It is an arithmetic number, because the mean of its divisors is an integer number (92362954131).

Almost surely, 2^{1231320332310} is an apocalyptic number.

1231320332310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1231320332310 is an abundant number, since it is smaller than the sum of its proper divisors (1724294199882).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1231320332310 is a wasteful number, since it uses less digits than its factorization.

1231320332310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6190768.

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

Adding to 1231320332310 its reverse (132330231321), we get a palindrome (1363650563631).

The spelling of 1231320332310 in words is "one trillion, two hundred thirty-one billion, three hundred twenty million, three hundred thirty-two thousand, three hundred ten".