120310021121 has 4 divisors (see below), whose sum is σ = 120312848832. Its totient is φ = 120307193412.

The previous prime is 120310021019. The next prime is 120310021123. The reversal of 120310021121 is 121120013021.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120310021121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120310021096 and 120310021105.

It is not an unprimeable number, because it can be changed into a prime (120310021123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1349045 + ... + 1435458.

It is an arithmetic number, because the mean of its divisors is an integer number (30078212208).

Almost surely, 2^120310021121 is an apocalyptic number.

It is an amenable number.

120310021121 is a deficient number, since it is larger than the sum of its proper divisors (2827711).

120310021121 is an equidigital number, since it uses as much as digits as its factorization.

120310021121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2827710.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 120310021121 its reverse (121120013021), we get a palindrome (241430034142).

It can be divided in two parts, 1203100 and 21121, that added together give a palindrome (1224221).

The spelling of 120310021121 in words is "one hundred twenty billion, three hundred ten million, twenty-one thousand, one hundred twenty-one".