121045311 has 12 divisors (see below), whose sum is σ = 175208592. Its totient is φ = 80528256.

The previous prime is 121045307. The next prime is 121045319. The reversal of 121045311 is 113540121.

121045311 is a `hidden beast` number, since 1 + 210 + 453 + 1 + 1 = 666.

It is not a de Polignac number, because 121045311 - 2² = 121045307 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121045319) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9426 + ... + 18191.

It is an arithmetic number, because the mean of its divisors is an integer number (14600716).

Almost surely, 2^121045311 is an apocalyptic number.

121045311 is a deficient number, since it is larger than the sum of its proper divisors (54163281).

121045311 is a wasteful number, since it uses less digits than its factorization.

121045311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28110 (or 28107 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 121045311 is about 11002.0593981309. The cubic root of 121045311 is about 494.6704755093.

Adding to 121045311 its reverse (113540121), we get a palindrome (234585432).

The spelling of 121045311 in words is "one hundred twenty-one million, forty-five thousand, three hundred eleven".