1311102412 has 48 divisors (see below), whose sum is σ = 2449077120. Its totient is φ = 613088000.

The previous prime is 1311102389. The next prime is 1311102427. The reversal of 1311102412 is 2142011131.

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, 549462 + ... + 551842.

It is an arithmetic number, because the mean of its divisors is an integer number (51022440).

Almost surely, 2^1311102412 is an apocalyptic number.

It is an amenable number.

1311102412 is a deficient number, since it is larger than the sum of its proper divisors (1137974708).

1311102412 is a wasteful number, since it uses less digits than its factorization.

1311102412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2562 (or 2560 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 1311102412 is about 36209.1481810882. The cubic root of 1311102412 is about 1094.4910270543.

Adding to 1311102412 its reverse (2142011131), we get a palindrome (3453113543).

The spelling of 1311102412 in words is "one billion, three hundred eleven million, one hundred two thousand, four hundred twelve".