121155061753 has 16 divisors (see below), whose sum is σ = 133146247104. Its totient is φ = 109329615360.

The previous prime is 121155061751. The next prime is 121155061759. The reversal of 121155061753 is 357160551121.

It is a cyclic number.

It is not a de Polignac number, because 121155061753 - 2¹ = 121155061751 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121155061751) 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, 769501 + ... + 913477.

It is an arithmetic number, because the mean of its divisors is an integer number (8321640444).

Almost surely, 2^121155061753 is an apocalyptic number.

It is an amenable number.

121155061753 is a deficient number, since it is larger than the sum of its proper divisors (11991185351).

121155061753 is a wasteful number, since it uses less digits than its factorization.

121155061753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144552.

The product of its (nonzero) digits is 31500, while the sum is 37.

The spelling of 121155061753 in words is "one hundred twenty-one billion, one hundred fifty-five million, sixty-one thousand, seven hundred fifty-three".