20020011400 has 24 divisors (see below), whose sum is σ = 46546526970. Its totient is φ = 8008004480.

The previous prime is 20020011391. The next prime is 20020011413. The reversal of 20020011400 is 411002002.

It can be written as a sum of positive squares in 3 ways, for example, as 18880408836 + 1139602564 = 137406^2 + 33758^2 .

It is a super-2 number, since 2×20020011400² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50049829 + ... + 50050228.

Almost surely, 2^20020011400 is an apocalyptic number.

20020011400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20020011400 is an abundant number, since it is smaller than the sum of its proper divisors (26526515570).

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

20020011400 is a wasteful number, since it uses less digits than its factorization.

20020011400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100100073 (or 100100064 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 20020011400 its reverse (411002002), we get a palindrome (20431013402).

It can be divided in two parts, 200200 and 11400, that added together give a square (211600 = 460²).

The spelling of 20020011400 in words is "twenty billion, twenty million, eleven thousand, four hundred".