1213131023198 has 16 divisors (see below), whose sum is σ = 1838242998000. Its totient is φ = 600392863296.

The previous prime is 1213131023189. The next prime is 1213131023201. The reversal of 1213131023198 is 8913201313121.

It is a super-3 number, since 3×1213131023198³ (a number of 37 digits) contains 333 as substring.

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, 2120573 + ... + 2631176.

It is an arithmetic number, because the mean of its divisors is an integer number (114890187375).

Almost surely, 2^{1213131023198} is an apocalyptic number.

1213131023198 is a deficient number, since it is larger than the sum of its proper divisors (625111974802).

1213131023198 is a wasteful number, since it uses less digits than its factorization.

1213131023198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4753051.

The product of its (nonzero) digits is 7776, while the sum is 35.

The spelling of 1213131023198 in words is "one trillion, two hundred thirteen billion, one hundred thirty-one million, twenty-three thousand, one hundred ninety-eight".