1313121222988 has 24 divisors (see below), whose sum is σ = 2378433692880. Its totient is φ = 633592196160.

The previous prime is 1313121222967. The next prime is 1313121222991. The reversal of 1313121222988 is 8892221213131.

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, 2707131 + ... + 3155122.

It is an arithmetic number, because the mean of its divisors is an integer number (99101403870).

Almost surely, 2^{1313121222988} is an apocalyptic number.

It is an amenable number.

1313121222988 is a deficient number, since it is larger than the sum of its proper divisors (1065312469892).

1313121222988 is a wasteful number, since it uses less digits than its factorization.

1313121222988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5864217 (or 5864215 counting only the distinct ones).

The product of its digits is 82944, while the sum is 43.

The spelling of 1313121222988 in words is "one trillion, three hundred thirteen billion, one hundred twenty-one million, two hundred twenty-two thousand, nine hundred eighty-eight".