121054254691 has 8 divisors (see below), whose sum is σ = 121434380480. Its totient is φ = 120674593152.

The previous prime is 121054254683. The next prime is 121054254701. The reversal of 121054254691 is 196452450121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121054254691 - 2³ = 121054254683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121054254641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 409990 + ... + 640468.

It is an arithmetic number, because the mean of its divisors is an integer number (15179297560).

Almost surely, 2^121054254691 is an apocalyptic number.

121054254691 is a deficient number, since it is larger than the sum of its proper divisors (380125789).

121054254691 is a wasteful number, since it uses less digits than its factorization.

121054254691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232125.

The product of its (nonzero) digits is 86400, while the sum is 40.

The spelling of 121054254691 in words is "one hundred twenty-one billion, fifty-four million, two hundred fifty-four thousand, six hundred ninety-one".