121541364136 has 32 divisors (see below), whose sum is σ = 246906887040. Its totient is φ = 55865795328.

The previous prime is 121541364127. The next prime is 121541364223. The reversal of 121541364136 is 631463145121.

It is a junction number, because it is equal to n+sod(n) for n = 121541364095 and 121541364104.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10385856 + ... + 10397551.

It is an arithmetic number, because the mean of its divisors is an integer number (7715840220).

Almost surely, 2^121541364136 is an apocalyptic number.

It is an amenable number.

121541364136 is an abundant number, since it is smaller than the sum of its proper divisors (125365522904).

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

121541364136 is a wasteful number, since it uses less digits than its factorization.

121541364136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20783473 (or 20783469 counting only the distinct ones).

The product of its digits is 51840, while the sum is 37.

The spelling of 121541364136 in words is "one hundred twenty-one billion, five hundred forty-one million, three hundred sixty-four thousand, one hundred thirty-six".