121590953385 has 16 divisors (see below), whose sum is σ = 212231482560. Its totient is φ = 58953189440.

The previous prime is 121590953353. The next prime is 121590953387. The reversal of 121590953385 is 583359095121.

It is not a de Polignac number, because 121590953385 - 2⁵ = 121590953353 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121590953387) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 368457270 + ... + 368457599.

It is an arithmetic number, because the mean of its divisors is an integer number (13264467660).

Almost surely, 2^121590953385 is an apocalyptic number.

121590953385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121590953385 is a deficient number, since it is larger than the sum of its proper divisors (90640529175).

121590953385 is a wasteful number, since it uses less digits than its factorization.

121590953385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 736914888.

The product of its (nonzero) digits is 1458000, while the sum is 51.

The spelling of 121590953385 in words is "one hundred twenty-one billion, five hundred ninety million, nine hundred fifty-three thousand, three hundred eighty-five".