13143502221240 has 128 divisors (see below), whose sum is σ = 39474864000000. Its totient is φ = 3500993008128.

The previous prime is 13143502221229. The next prime is 13143502221253. The reversal of 13143502221240 is 4212220534131.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 13143502221198 and 13143502221207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 505525761 + ... + 505551759.

It is an arithmetic number, because the mean of its divisors is an integer number (308397375000).

Almost surely, 2^{13143502221240} is an apocalyptic number.

13143502221240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13143502221240 is an abundant number, since it is smaller than the sum of its proper divisors (26331361778760).

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

13143502221240 is a wasteful number, since it uses less digits than its factorization.

13143502221240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30589 (or 30585 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 13143502221240 its reverse (4212220534131), we get a palindrome (17355722755371).

The spelling of 13143502221240 in words is "thirteen trillion, one hundred forty-three billion, five hundred two million, two hundred twenty-one thousand, two hundred forty".