12020031023 has 32 divisors (see below), whose sum is σ = 16152729600. Its totient is φ = 8638306560.

The previous prime is 12020031017. The next prime is 12020031053. The reversal of 12020031023 is 32013002021.

It is a happy number.

It is not a de Polignac number, because 12020031023 - 2⁶ = 12020030959 is a prime.

It is a super-2 number, since 2×12020031023² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12020030989 and 12020031007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020031053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1323803 + ... + 1332851.

It is an arithmetic number, because the mean of its divisors is an integer number (504772800).

Almost surely, 2^12020031023 is an apocalyptic number.

12020031023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12020031023 is a deficient number, since it is larger than the sum of its proper divisors (4132698577).

12020031023 is a wasteful number, since it uses less digits than its factorization.

12020031023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10407.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 12020031023 its reverse (32013002021), we get a palindrome (44033033044).

The spelling of 12020031023 in words is "twelve billion, twenty million, thirty-one thousand, twenty-three".