120200123021 has 24 divisors (see below), whose sum is σ = 132468253632. Its totient is φ = 108166385600.

The previous prime is 120200122981. The next prime is 120200123023. The reversal of 120200123021 is 120321002021.

It is a happy number.

It is not a de Polignac number, because 120200123021 - 2³⁰ = 119126381197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120200122987 and 120200123005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120200123023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 140256425 + ... + 140257281.

It is an arithmetic number, because the mean of its divisors is an integer number (5519510568).

Almost surely, 2^120200123021 is an apocalyptic number.

120200123021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

120200123021 is a deficient number, since it is larger than the sum of its proper divisors (12268130611).

120200123021 is an equidigital number, since it uses as much as digits as its factorization.

120200123021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1873 (or 1742 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 120200123021 its reverse (120321002021), we get a palindrome (240521125042).

The spelling of 120200123021 in words is "one hundred twenty billion, two hundred million, one hundred twenty-three thousand, twenty-one".