420402031312 has 40 divisors (see below), whose sum is σ = 818144822880. Its totient is φ = 209269956480.

The previous prime is 420402031297. The next prime is 420402031327. The reversal of 420402031312 is 213130204024.

It is an interprime number because it is at equal distance from previous prime (420402031297) and next prime (420402031327).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3203239 + ... + 3331897.

It is an arithmetic number, because the mean of its divisors is an integer number (20453620572).

Almost surely, 2^420402031312 is an apocalyptic number.

It is an amenable number.

420402031312 is a deficient number, since it is larger than the sum of its proper divisors (397742791568).

420402031312 is a wasteful number, since it uses less digits than its factorization.

420402031312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129571 (or 129565 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 420402031312 its reverse (213130204024), we get a palindrome (633532235336).

The spelling of 420402031312 in words is "four hundred twenty billion, four hundred two million, thirty-one thousand, three hundred twelve".