23020021312002 has 192 divisors, whose sum is σ = 63983761729920. Its totient is φ = 6060391833600.

The previous prime is 23020021311971. The next prime is 23020021312003. The reversal of 23020021312002 is 20021312002032.

23020021312002 is a `hidden beast` number, since 230 + 20 + 0 + 213 + 1 + 200 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (23020021312003) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5037999 + ... + 8451122.

It is an arithmetic number, because the mean of its divisors is an integer number (333248759010).

Almost surely, 2^{23020021312002} is an apocalyptic number.

23020021312002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

23020021312002 is an abundant number, since it is smaller than the sum of its proper divisors (40963740417918).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23020021312002 is a wasteful number, since it uses less digits than its factorization.

23020021312002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13489186 (or 13489167 counting only the distinct ones).

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

Adding to 23020021312002 its reverse (20021312002032), we get a palindrome (43041333314034).

The spelling of 23020021312002 in words is "twenty-three trillion, twenty billion, twenty-one million, three hundred twelve thousand, two".