10123002021 has 32 divisors (see below), whose sum is σ = 14846238720. Its totient is φ = 6084590400.

The previous prime is 10123001971. The next prime is 10123002037. The reversal of 10123002021 is 12020032101.

It is not a de Polignac number, because 10123002021 - 2¹⁰ = 10123000997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10123001988 and 10123002006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10123002091) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2045476 + ... + 2050418.

It is an arithmetic number, because the mean of its divisors is an integer number (463944960).

Almost surely, 2^10123002021 is an apocalyptic number.

10123002021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10123002021 is a deficient number, since it is larger than the sum of its proper divisors (4723236699).

10123002021 is a wasteful number, since it uses less digits than its factorization.

10123002021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5457.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 10123002021 its reverse (12020032101), we get a palindrome (22143034122).

The spelling of 10123002021 in words is "ten billion, one hundred twenty-three million, two thousand, twenty-one".