120421210031 has 8 divisors (see below), whose sum is σ = 122351594880. Its totient is φ = 118494738648.

The previous prime is 120421209977. The next prime is 120421210043. The reversal of 120421210031 is 130012124021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120421210031 is a prime.

It is a super-2 number, since 2×120421210031² (a number of 23 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 = 120421209991 and 120421210009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120421210831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 916301 + ... + 1039446.

It is an arithmetic number, because the mean of its divisors is an integer number (15293949360).

Almost surely, 2^120421210031 is an apocalyptic number.

120421210031 is a deficient number, since it is larger than the sum of its proper divisors (1930384849).

120421210031 is an equidigital number, since it uses as much as digits as its factorization.

120421210031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1956733.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 120421210031 its reverse (130012124021), we get a palindrome (250433334052).

The spelling of 120421210031 in words is "one hundred twenty billion, four hundred twenty-one million, two hundred ten thousand, thirty-one".