1313100040 has 64 divisors (see below), whose sum is σ = 3445488000. Its totient is φ = 450201024.

The previous prime is 1313100031. The next prime is 1313100059. The reversal of 1313100040 is 400013131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34134 + ... + 61573.

It is an arithmetic number, because the mean of its divisors is an integer number (53835750).

Almost surely, 2^1313100040 is an apocalyptic number.

1313100040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1313100040 is an abundant number, since it is smaller than the sum of its proper divisors (2132387960).

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

1313100040 is an equidigital number, since it uses as much as digits as its factorization.

1313100040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95739 (or 95721 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1313100040 is about 36236.7222579526. The cubic root of 1313100040 is about 1095.0466094989.

Adding to 1313100040 its reverse (400013131), we get a palindrome (1713113171).

The spelling of 1313100040 in words is "one billion, three hundred thirteen million, one hundred thousand, forty".