1310200400 has 30 divisors (see below), whose sum is σ = 3147757422. Its totient is φ = 524080000.

The previous prime is 1310200391. The next prime is 1310200403. The reversal of 1310200400 is 40020131.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 14776336 + 1295424064 = 3844^2 + 35992^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1310200403) 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, 1637351 + ... + 1638150.

Almost surely, 2^1310200400 is an apocalyptic number.

1310200400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1310200400 is an abundant number, since it is smaller than the sum of its proper divisors (1837557022).

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

1310200400 is a wasteful number, since it uses less digits than its factorization.

1310200400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3275519 (or 3275508 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 1310200400 is about 36196.6904564492. The cubic root of 1310200400 is about 1094.2399735593.

Adding to 1310200400 its reverse (40020131), we get a palindrome (1350220531).

The spelling of 1310200400 in words is "one billion, three hundred ten million, two hundred thousand, four hundred".