20420023299988 has 48 divisors (see below), whose sum is σ = 39254550563200. Its totient is φ = 9237306697344.

The previous prime is 20420023299959. The next prime is 20420023299989. The reversal of 20420023299988 is 88999232002402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20420023299989) 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, 14033031 + ... + 15419662.

Almost surely, 2^{20420023299988} is an apocalyptic number.

It is an amenable number.

20420023299988 is a deficient number, since it is larger than the sum of its proper divisors (18834527263212).

20420023299988 is a wasteful number, since it uses less digits than its factorization.

20420023299988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29452976 (or 29452974 counting only the distinct ones).

The product of its (nonzero) digits is 8957952, while the sum is 58.

The spelling of 20420023299988 in words is "twenty trillion, four hundred twenty billion, twenty-three million, two hundred ninety-nine thousand, nine hundred eighty-eight".