1215431410020 has 24 divisors (see below), whose sum is σ = 3403207948224. Its totient is φ = 324115042656.

The previous prime is 1215431409977. The next prime is 1215431410031. The reversal of 1215431410020 is 200141345121.

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, 10128595024 + ... + 10128595143.

It is an arithmetic number, because the mean of its divisors is an integer number (141800331176).

Almost surely, 2^{1215431410020} is an apocalyptic number.

1215431410020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1215431410020 is an abundant number, since it is smaller than the sum of its proper divisors (2187776538204).

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

1215431410020 is a wasteful number, since it uses less digits than its factorization.

1215431410020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20257190179 (or 20257190177 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

Adding to 1215431410020 its reverse (200141345121), we get a palindrome (1415572755141).

The spelling of 1215431410020 in words is "one trillion, two hundred fifteen billion, four hundred thirty-one million, four hundred ten thousand, twenty".