20978233102 has 8 divisors (see below), whose sum is σ = 32234846112. Its totient is φ = 10233284400.

The previous prime is 20978233097. The next prime is 20978233123. The reversal of 20978233102 is 20133287902.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127915974 + ... + 127916137.

It is an arithmetic number, because the mean of its divisors is an integer number (4029355764).

Almost surely, 2^20978233102 is an apocalyptic number.

20978233102 is a deficient number, since it is larger than the sum of its proper divisors (11256613010).

20978233102 is a wasteful number, since it uses less digits than its factorization.

20978233102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255832154.

The product of its (nonzero) digits is 36288, while the sum is 37.

The spelling of 20978233102 in words is "twenty billion, nine hundred seventy-eight million, two hundred thirty-three thousand, one hundred two".