1311440133432 has 64 divisors (see below), whose sum is σ = 3851782220160. Its totient is φ = 366836400000.

The previous prime is 1311440133427. The next prime is 1311440133457. The reversal of 1311440133432 is 2343310441131.

It is a super-2 number, since 2×1311440133432² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1311440133432.

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, 191057194 + ... + 191064057.

It is an arithmetic number, because the mean of its divisors is an integer number (60184097190).

Almost surely, 2^{1311440133432} is an apocalyptic number.

1311440133432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1311440133432 is an abundant number, since it is smaller than the sum of its proper divisors (2540342086728).

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

1311440133432 is a wasteful number, since it uses less digits than its factorization.

1311440133432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382121284 (or 382121280 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

Adding to 1311440133432 its reverse (2343310441131), we get a palindrome (3654750574563).

The spelling of 1311440133432 in words is "one trillion, three hundred eleven billion, four hundred forty million, one hundred thirty-three thousand, four hundred thirty-two".