1311403132 has 48 divisors (see below), whose sum is σ = 2520713664. Its totient is φ = 593280000.

The previous prime is 1311403111. The next prime is 1311403147. The reversal of 1311403132 is 2313041131.

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, 1271457 + ... + 1272487.

It is an arithmetic number, because the mean of its divisors is an integer number (52514868).

Almost surely, 2^1311403132 is an apocalyptic number.

It is an amenable number.

1311403132 is a deficient number, since it is larger than the sum of its proper divisors (1209310532).

1311403132 is a wasteful number, since it uses less digits than its factorization.

1311403132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1510 (or 1508 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1311403132 is about 36213.3004847666. The cubic root of 1311403132 is about 1094.5746996893.

Adding to 1311403132 its reverse (2313041131), we get a palindrome (3624444263).

The spelling of 1311403132 in words is "one billion, three hundred eleven million, four hundred three thousand, one hundred thirty-two".