1031012000400 has 120 divisors (see below), whose sum is σ = 3391936743424. Its totient is φ = 267505804800.

The previous prime is 1031012000387. The next prime is 1031012000467. The reversal of 1031012000400 is 40002101301.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11566096 + ... + 11654895.

Almost surely, 2^{1031012000400} is an apocalyptic number.

1031012000400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1031012000400 is an abundant number, since it is smaller than the sum of its proper divisors (2360924743024).

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

1031012000400 is a wasteful number, since it uses less digits than its factorization.

1031012000400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23221049 (or 23221038 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 1031012000400 its reverse (40002101301), we get a palindrome (1071014101701).

The spelling of 1031012000400 in words is "one trillion, thirty-one billion, twelve million, four hundred", and thus it is an aban number.