2131243290198 has 60 divisors (see below), whose sum is σ = 5209856468388. Its totient is φ = 645812625240.

The previous prime is 2131243290191. The next prime is 2131243290217. The reversal of 2131243290198 is 8910923421312.

2131243290198 is a `hidden beast` number, since 2 + 1 + 31 + 243 + 290 + 1 + 98 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131243290191) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 61609615 + ... + 61644197.

Almost surely, 2^{2131243290198} is an apocalyptic number.

2131243290198 is an abundant number, since it is smaller than the sum of its proper divisors (3078613178190).

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

2131243290198 is an frugal number, since it uses more digits than its factorization.

2131243290198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69191 (or 34599 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The spelling of 2131243290198 in words is "two trillion, one hundred thirty-one billion, two hundred forty-three million, two hundred ninety thousand, one hundred ninety-eight".