10402123023 has 6 divisors (see below), whose sum is σ = 15025288824. Its totient is φ = 6934748676.

The previous prime is 10402123009. The next prime is 10402123063. The reversal of 10402123023 is 32032120401.

10402123023 is a `hidden beast` number, since 10 + 402 + 1 + 230 + 23 = 666.

It is not a de Polignac number, because 10402123023 - 2¹³ = 10402114831 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10402122987 and 10402123005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10402123063) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 577895715 + ... + 577895732.

It is an arithmetic number, because the mean of its divisors is an integer number (2504214804).

Almost surely, 2^10402123023 is an apocalyptic number.

10402123023 is a deficient number, since it is larger than the sum of its proper divisors (4623165801).

10402123023 is a wasteful number, since it uses less digits than its factorization.

10402123023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1155791453 (or 1155791450 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 10402123023 its reverse (32032120401), we get a palindrome (42434243424).

The spelling of 10402123023 in words is "ten billion, four hundred two million, one hundred twenty-three thousand, twenty-three".