120121003231 has 4 divisors (see below), whose sum is σ = 120132166264. Its totient is φ = 120109840200.

The previous prime is 120121003193. The next prime is 120121003267. The reversal of 120121003231 is 132300121021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 120121003231 - 2¹³ = 120120995039 is a prime.

It is a super-2 number, since 2×120121003231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120121003271) 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, 5565360 + ... + 5586901.

It is an arithmetic number, because the mean of its divisors is an integer number (30033041566).

Almost surely, 2^120121003231 is an apocalyptic number.

120121003231 is a deficient number, since it is larger than the sum of its proper divisors (11163033).

120121003231 is a wasteful number, since it uses less digits than its factorization.

120121003231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11163032.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 120121003231 its reverse (132300121021), we get a palindrome (252421124252).

The spelling of 120121003231 in words is "one hundred twenty billion, one hundred twenty-one million, three thousand, two hundred thirty-one".