10020311880 has 64 divisors (see below), whose sum is σ = 30873407040. Its totient is φ = 2599863552.

The previous prime is 10020311879. The next prime is 10020311881. The reversal of 10020311880 is 8811302001.

It is an interprime number because it is at equal distance from previous prime (10020311879) and next prime (10020311881).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 10020311880.

It is not an unprimeable number, because it can be changed into a prime (10020311881) 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, 1123974 + ... + 1132853.

It is an arithmetic number, because the mean of its divisors is an integer number (482396985).

Almost surely, 2^10020311880 is an apocalyptic number.

10020311880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10020311880 is an abundant number, since it is smaller than the sum of its proper divisors (20853095160).

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

10020311880 is a wasteful number, since it uses less digits than its factorization.

10020311880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2256878 (or 2256874 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 24.

Adding to 10020311880 its reverse (8811302001), we get a palindrome (18831613881).

The spelling of 10020311880 in words is "ten billion, twenty million, three hundred eleven thousand, eight hundred eighty".