20102001012023 has 16 divisors (see below), whose sum is σ = 23985972963840. Its totient is φ = 16471930961376.

The previous prime is 20102001012011. The next prime is 20102001012031. The reversal of 20102001012023 is 32021010020102.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20102001012023 - 2³⁶ = 20033281535287 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20102001011989 and 20102001012007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20102001012043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34607765 + ... + 35183822.

It is an arithmetic number, because the mean of its divisors is an integer number (1499123310240).

Almost surely, 2^{20102001012023} is an apocalyptic number.

20102001012023 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

20102001012023 is a deficient number, since it is larger than the sum of its proper divisors (3883971951817).

20102001012023 is a wasteful number, since it uses less digits than its factorization.

20102001012023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69793406.

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

Adding to 20102001012023 its reverse (32021010020102), we get a palindrome (52123011032125).

The spelling of 20102001012023 in words is "twenty trillion, one hundred two billion, one million, twelve thousand, twenty-three".