121120265029 has 4 divisors (see below), whose sum is σ = 127495015840. Its totient is φ = 114745514220.

The previous prime is 121120265011. The next prime is 121120265033. The reversal of 121120265029 is 920562021121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 920562021121 = 25087 ⋅36694783.

It is a cyclic number.

It is not a de Polignac number, because 121120265029 - 2¹¹ = 121120262981 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 (121120265059) 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 3 ways as a sum of consecutive naturals, for example, 3187375377 + ... + 3187375414.

It is an arithmetic number, because the mean of its divisors is an integer number (31873753960).

Almost surely, 2^121120265029 is an apocalyptic number.

121120265029 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

121120265029 is a deficient number, since it is larger than the sum of its proper divisors (6374750811).

121120265029 is an equidigital number, since it uses as much as digits as its factorization.

121120265029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6374750810.

The product of its (nonzero) digits is 4320, while the sum is 31.

The spelling of 121120265029 in words is "one hundred twenty-one billion, one hundred twenty million, two hundred sixty-five thousand, twenty-nine".