121150913 has 32 divisors (see below), whose sum is σ = 143410176. Its totient is φ = 101426688.

The previous prime is 121150907. The next prime is 121150933. The reversal of 121150913 is 319051121.

It is not a de Polignac number, because 121150913 - 2¹⁴ = 121134529 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121150903) 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, 519845 + ... + 520077.

It is an arithmetic number, because the mean of its divisors is an integer number (4481568).

Almost surely, 2^121150913 is an apocalyptic number.

121150913 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

121150913 is a deficient number, since it is larger than the sum of its proper divisors (22259263).

121150913 is a wasteful number, since it uses less digits than its factorization.

121150913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353.

The product of its (nonzero) digits is 270, while the sum is 23.

The square root of 121150913 is about 11006.8575442767. The cubic root of 121150913 is about 494.8142866913.

The spelling of 121150913 in words is "one hundred twenty-one million, one hundred fifty thousand, nine hundred thirteen".