12002620023 has 6 divisors (see below), whose sum is σ = 17337117824. Its totient is φ = 8001746676.

The previous prime is 12002619961. The next prime is 12002620031. The reversal of 12002620023 is 32002620021.

12002620023 is a `hidden beast` number, since 1 + 20 + 0 + 2 + 620 + 0 + 23 = 666.

It is not a de Polignac number, because 12002620023 - 2¹⁷ = 12002488951 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12002619978 and 12002620005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12002620073) 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, 666812215 + ... + 666812232.

Almost surely, 2^12002620023 is an apocalyptic number.

12002620023 is a deficient number, since it is larger than the sum of its proper divisors (5334497801).

12002620023 is a wasteful number, since it uses less digits than its factorization.

12002620023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1333624453 (or 1333624450 counting only the distinct ones).

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

It can be divided in two parts, 12002 and 620023, that added together give a square (632025 = 795²).

The spelling of 12002620023 in words is "twelve billion, two million, six hundred twenty thousand, twenty-three".