120021032231 has 4 divisors (see below), whose sum is σ = 123892678464. Its totient is φ = 116149386000.

The previous prime is 120021032141. The next prime is 120021032233. The reversal of 120021032231 is 132230120021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132230120021 = 74597 ⋅1772593.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120021032231 is a prime.

It is a super-2 number, since 2×120021032231² (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 (120021032233) 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, 1935823070 + ... + 1935823131.

It is an arithmetic number, because the mean of its divisors is an integer number (30973169616).

Almost surely, 2^120021032231 is an apocalyptic number.

120021032231 is a deficient number, since it is larger than the sum of its proper divisors (3871646233).

120021032231 is an equidigital number, since it uses as much as digits as its factorization.

120021032231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3871646232.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 120021032231 its reverse (132230120021), we get a palindrome (252251152252).

The spelling of 120021032231 in words is "one hundred twenty billion, twenty-one million, thirty-two thousand, two hundred thirty-one".