10011020988 has 24 divisors (see below), whose sum is σ = 23420049408. Its totient is φ = 3328292656.

The previous prime is 10011020953. The next prime is 10011020989. The reversal of 10011020988 is 88902011001.

It is a super-2 number, since 2×10011020988² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10011020989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1084506 + ... + 1093697.

It is an arithmetic number, because the mean of its divisors is an integer number (975835392).

Almost surely, 2^10011020988 is an apocalyptic number.

It is an amenable number.

10011020988 is an abundant number, since it is smaller than the sum of its proper divisors (13409028420).

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

10011020988 is a wasteful number, since it uses less digits than its factorization.

10011020988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2178593 (or 2178591 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 30.

Adding to 10011020988 its reverse (88902011001), we get a palindrome (98913031989).

The spelling of 10011020988 in words is "ten billion, eleven million, twenty thousand, nine hundred eighty-eight".