121074750719 has 32 divisors (see below), whose sum is σ = 140002080960. Its totient is φ = 103769164800.

The previous prime is 121074750697. The next prime is 121074750733. The reversal of 121074750719 is 917057470121.

It is a cyclic number.

It is not a de Polignac number, because 121074750719 - 2⁸ = 121074750463 is a prime.

It is a super-2 number, since 2×121074750719² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121074750719.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121074750799) 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, 4219529 + ... + 4248125.

It is an arithmetic number, because the mean of its divisors is an integer number (4375065030).

Almost surely, 2^121074750719 is an apocalyptic number.

121074750719 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

121074750719 is a deficient number, since it is larger than the sum of its proper divisors (18927330241).

121074750719 is a wasteful number, since it uses less digits than its factorization.

121074750719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28971.

The product of its (nonzero) digits is 123480, while the sum is 44.

The spelling of 121074750719 in words is "one hundred twenty-one billion, seventy-four million, seven hundred fifty thousand, seven hundred nineteen".