121345481456 has 10 divisors (see below), whose sum is σ = 235106870352. Its totient is φ = 60672740720.

The previous prime is 121345481441. The next prime is 121345481471. The reversal of 121345481456 is 654184543121.

It is an interprime number because it is at equal distance from previous prime (121345481441) and next prime (121345481471).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3792046280 + ... + 3792046311.

Almost surely, 2^121345481456 is an apocalyptic number.

121345481456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

121345481456 is a deficient number, since it is larger than the sum of its proper divisors (113761388896).

121345481456 is an equidigital number, since it uses as much as digits as its factorization.

121345481456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7584092599 (or 7584092593 counting only the distinct ones).

The product of its digits is 460800, while the sum is 44.

The spelling of 121345481456 in words is "one hundred twenty-one billion, three hundred forty-five million, four hundred eighty-one thousand, four hundred fifty-six".