201324031400 has 24 divisors (see below), whose sum is σ = 468078373470. Its totient is φ = 80529612480.

The previous prime is 201324031399. The next prime is 201324031409. The reversal of 201324031400 is 4130423102.

It can be written as a sum of positive squares in 3 ways, for example, as 87702453316 + 113621578084 = 296146^2 + 337078^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (201324031409) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 503309879 + ... + 503310278.

Almost surely, 2^201324031400 is an apocalyptic number.

201324031400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201324031400 is an abundant number, since it is smaller than the sum of its proper divisors (266754342070).

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

201324031400 is a wasteful number, since it uses less digits than its factorization.

201324031400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006620173 (or 1006620164 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 201324031400 its reverse (4130423102), we get a palindrome (205454454502).

The spelling of 201324031400 in words is "two hundred one billion, three hundred twenty-four million, thirty-one thousand, four hundred".