13431511142220 has 96 divisors (see below), whose sum is σ = 37667035316736. Its totient is φ = 3576138854400.

The previous prime is 13431511142207. The next prime is 13431511142233. The reversal of 13431511142220 is 2224111513431.

13431511142220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13431511142207) and next prime (13431511142233).

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

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, 152602425 + ... + 152690415.

It is an arithmetic number, because the mean of its divisors is an integer number (392364951216).

Almost surely, 2^{13431511142220} is an apocalyptic number.

13431511142220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13431511142220 is an abundant number, since it is smaller than the sum of its proper divisors (24235524174516).

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

13431511142220 is a wasteful number, since it uses less digits than its factorization.

13431511142220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91951 (or 91949 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

Adding to 13431511142220 its reverse (2224111513431), we get a palindrome (15655622655651).

The spelling of 13431511142220 in words is "thirteen trillion, four hundred thirty-one billion, five hundred eleven million, one hundred forty-two thousand, two hundred twenty".