1031320421420 has 48 divisors (see below), whose sum is σ = 2335364892000. Its totient is φ = 381284052480.

The previous prime is 1031320421413. The next prime is 1031320421459. The reversal of 1031320421420 is 241240231301.

1031320421420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 33081995 + ... + 33113154.

It is an arithmetic number, because the mean of its divisors is an integer number (48653435250).

Almost surely, 2^{1031320421420} is an apocalyptic number.

1031320421420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1031320421420 is an abundant number, since it is smaller than the sum of its proper divisors (1304044470580).

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

1031320421420 is a wasteful number, since it uses less digits than its factorization.

1031320421420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66195218 (or 66195216 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 1031320421420 its reverse (241240231301), we get a palindrome (1272560652721).

The spelling of 1031320421420 in words is "one trillion, thirty-one billion, three hundred twenty million, four hundred twenty-one thousand, four hundred twenty".