121054254531 has 32 divisors (see below), whose sum is σ = 191090534400. Its totient is φ = 66695422080.

The previous prime is 121054254527. The next prime is 121054254569. The reversal of 121054254531 is 135452450121.

It is not a de Polignac number, because 121054254531 - 2² = 121054254527 is a prime.

It is a super-2 number, since 2×121054254531² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121054254492 and 121054254501.

It is not an unprimeable number, because it can be changed into a prime (121054254731) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 299641 + ... + 576101.

It is an arithmetic number, because the mean of its divisors is an integer number (5971579200).

Almost surely, 2^121054254531 is an apocalyptic number.

121054254531 is a deficient number, since it is larger than the sum of its proper divisors (70036279869).

121054254531 is a wasteful number, since it uses less digits than its factorization.

121054254531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277219.

The product of its (nonzero) digits is 24000, while the sum is 33.

The spelling of 121054254531 in words is "one hundred twenty-one billion, fifty-four million, two hundred fifty-four thousand, five hundred thirty-one".