70031121420 has 96 divisors (see below), whose sum is σ = 215663874048. Its totient is φ = 16871645952.

The previous prime is 70031121409. The next prime is 70031121439. The reversal of 70031121420 is 2412113007.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 918484 + ... + 991803.

It is an arithmetic number, because the mean of its divisors is an integer number (2246498688).

Almost surely, 2^70031121420 is an apocalyptic number.

It is an amenable number.

70031121420 is an abundant number, since it is smaller than the sum of its proper divisors (145632752628).

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

70031121420 is a wasteful number, since it uses less digits than its factorization.

70031121420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1910359 (or 1910357 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 21.

Adding to 70031121420 its reverse (2412113007), we get a palindrome (72443234427).

The spelling of 70031121420 in words is "seventy billion, thirty-one million, one hundred twenty-one thousand, four hundred twenty".