121150556311 has 8 divisors (see below), whose sum is σ = 128290538880. Its totient is φ = 114086937528.

The previous prime is 121150556299. The next prime is 121150556323. The reversal of 121150556311 is 113655051121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (121150556299) and next prime (121150556323).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121150556311 - 2¹³ = 121150548119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121150553311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19087681 + ... + 19094026.

It is an arithmetic number, because the mean of its divisors is an integer number (16036317360).

Almost surely, 2^121150556311 is an apocalyptic number.

121150556311 is a deficient number, since it is larger than the sum of its proper divisors (7139982569).

121150556311 is a wasteful number, since it uses less digits than its factorization.

121150556311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38181893.

The product of its (nonzero) digits is 4500, while the sum is 31.

The spelling of 121150556311 in words is "one hundred twenty-one billion, one hundred fifty million, five hundred fifty-six thousand, three hundred eleven".