1310432231520 has 144 divisors (see below), whose sum is σ = 4476184064352. Its totient is φ = 349109913600.

The previous prime is 1310432231519. The next prime is 1310432231567. The reversal of 1310432231520 is 251322340131.

1310432231520 is a `hidden beast` number, since 1 + 3 + 1 + 0 + 4 + 322 + 315 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1047045 + ... + 1927995.

It is an arithmetic number, because the mean of its divisors is an integer number (31084611558).

Almost surely, 2^{1310432231520} is an apocalyptic number.

1310432231520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1310432231520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2238092032176).

1310432231520 is an abundant number, since it is smaller than the sum of its proper divisors (3165751832832).

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

1310432231520 is a wasteful number, since it uses less digits than its factorization.

1310432231520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 882005 (or 881994 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 1310432231520 its reverse (251322340131), we get a palindrome (1561754571651).

The spelling of 1310432231520 in words is "one trillion, three hundred ten billion, four hundred thirty-two million, two hundred thirty-one thousand, five hundred twenty".