120021130113231 has 4 divisors (see below), whose sum is σ = 160028173484312. Its totient is φ = 80014086742152.

The previous prime is 120021130113179. The next prime is 120021130113251. The reversal of 120021130113231 is 132311031120021.

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

It is not a de Polignac number, because 120021130113231 - 2⁶ = 120021130113167 is a prime.

It is a super-2 number, since 2×120021130113231² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120021130113198 and 120021130113207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120021130113251) 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, 20003521685536 + ... + 20003521685541.

It is an arithmetic number, because the mean of its divisors is an integer number (40007043371078).

Almost surely, 2^{120021130113231} is an apocalyptic number.

120021130113231 is a deficient number, since it is larger than the sum of its proper divisors (40007043371081).

120021130113231 is an equidigital number, since it uses as much as digits as its factorization.

120021130113231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40007043371080.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 120021130113231 its reverse (132311031120021), we get a palindrome (252332161233252).

The spelling of 120021130113231 in words is "one hundred twenty trillion, twenty-one billion, one hundred thirty million, one hundred thirteen thousand, two hundred thirty-one".