20331011004 has 24 divisors (see below), whose sum is σ = 47496411648. Its totient is φ = 6768805680.

The previous prime is 20331010969. The next prime is 20331011021. The reversal of 20331011004 is 40011013302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1014412 + ... + 1034259.

It is an arithmetic number, because the mean of its divisors is an integer number (1979017152).

Almost surely, 2^20331011004 is an apocalyptic number.

It is an amenable number.

20331011004 is an abundant number, since it is smaller than the sum of its proper divisors (27165400644).

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

20331011004 is a wasteful number, since it uses less digits than its factorization.

20331011004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2049505 (or 2049503 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20331011004 its reverse (40011013302), we get a palindrome (60342024306).

The spelling of 20331011004 in words is "twenty billion, three hundred thirty-one million, eleven thousand, four".