11420031400 has 48 divisors (see below), whose sum is σ = 26560158300. Its totient is φ = 4566535680.

The previous prime is 11420031353. The next prime is 11420031409. The reversal of 11420031400 is 413002411.

It can be written as a sum of positive squares in 6 ways, for example, as 2440952836 + 8979078564 = 49406^2 + 94758^2 .

It is not an unprimeable number, because it can be changed into a prime (11420031409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 778534 + ... + 793066.

Almost surely, 2^11420031400 is an apocalyptic number.

11420031400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11420031400 is an abundant number, since it is smaller than the sum of its proper divisors (15140126900).

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

11420031400 is a wasteful number, since it uses less digits than its factorization.

11420031400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18478 (or 18469 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 11420031400 its reverse (413002411), we get a palindrome (11833033811).

The spelling of 11420031400 in words is "eleven billion, four hundred twenty million, thirty-one thousand, four hundred".