1311511310004 has 24 divisors (see below), whose sum is σ = 3497363493568. Its totient is φ = 374717517120.

The previous prime is 1311511309991. The next prime is 1311511310017. The reversal of 1311511310004 is 4000131151131.

It is an interprime number because it is at equal distance from previous prime (1311511309991) and next prime (1311511310017).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7806614857 + ... + 7806615024.

Almost surely, 2^{1311511310004} is an apocalyptic number.

1311511310004 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1311511310004 is an abundant number, since it is smaller than the sum of its proper divisors (2185852183564).

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

1311511310004 is a wasteful number, since it uses less digits than its factorization.

1311511310004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15613229895 (or 15613229893 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 21.

Adding to 1311511310004 its reverse (4000131151131), we get a palindrome (5311642461135).

The spelling of 1311511310004 in words is "one trillion, three hundred eleven billion, five hundred eleven million, three hundred ten thousand, four".