1021406431032 has 64 divisors (see below), whose sum is σ = 3055489332000. Its totient is φ = 314278900992.

The previous prime is 1021406430953. The next prime is 1021406431051. The reversal of 1021406431032 is 2301346041201.

It is a happy number.

1021406431032 is a `hidden beast` number, since 1 + 0 + 2 + 1 + 4 + 0 + 643 + 10 + 3 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1021406430987 and 1021406431005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 181871557 + ... + 181877172.

Almost surely, 2^{1021406431032} is an apocalyptic number.

1021406431032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1021406431032 is an abundant number, since it is smaller than the sum of its proper divisors (2034082900968).

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

1021406431032 is a wasteful number, since it uses less digits than its factorization.

1021406431032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363748757 (or 363748747 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The spelling of 1021406431032 in words is "one trillion, twenty-one billion, four hundred six million, four hundred thirty-one thousand, thirty-two".