120940121635 has 16 divisors (see below), whose sum is σ = 147180085920. Its totient is φ = 95385288960.

The previous prime is 120940121633. The next prime is 120940121639. The reversal of 120940121635 is 536121049021.

It is not a de Polignac number, because 120940121635 - 2¹ = 120940121633 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120940121635.

It is not an unprimeable number, because it can be changed into a prime (120940121633) 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, 783696 + ... + 925234.

It is an arithmetic number, because the mean of its divisors is an integer number (9198755370).

Almost surely, 2^120940121635 is an apocalyptic number.

120940121635 is a deficient number, since it is larger than the sum of its proper divisors (26239964285).

120940121635 is a wasteful number, since it uses less digits than its factorization.

120940121635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143958.

The product of its (nonzero) digits is 12960, while the sum is 34.

The spelling of 120940121635 in words is "one hundred twenty billion, nine hundred forty million, one hundred twenty-one thousand, six hundred thirty-five".