121054254731 has 2 divisors, whose sum is σ = 121054254732. Its totient is φ = 121054254730.

The previous prime is 121054254703. The next prime is 121054254767. The reversal of 121054254731 is 137452450121.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121054254731 is a prime.

It is a super-3 number, since 3×121054254731³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 121054254691 and 121054254700.

It is not a weakly prime, because it can be changed into another prime (121054254701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60527127365 + 60527127366.

It is an arithmetic number, because the mean of its divisors is an integer number (60527127366).

Almost surely, 2^121054254731 is an apocalyptic number.

121054254731 is a deficient number, since it is larger than the sum of its proper divisors (1).

121054254731 is an equidigital number, since it uses as much as digits as its factorization.

121054254731 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 33600, while the sum is 35.

The spelling of 121054254731 in words is "one hundred twenty-one billion, fifty-four million, two hundred fifty-four thousand, seven hundred thirty-one".