13423151540 has 48 divisors (see below), whose sum is σ = 30395977920. Its totient is φ = 4962597120.

The previous prime is 13423151531. The next prime is 13423151561. The reversal of 13423151540 is 4515132431.

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, 415202 + ... + 446361.

It is an arithmetic number, because the mean of its divisors is an integer number (633249540).

Almost surely, 2^13423151540 is an apocalyptic number.

13423151540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13423151540 is an abundant number, since it is smaller than the sum of its proper divisors (16972826380).

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

13423151540 is a wasteful number, since it uses less digits than its factorization.

13423151540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861632 (or 861630 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 13423151540 its reverse (4515132431), we get a palindrome (17938283971).

The spelling of 13423151540 in words is "thirteen billion, four hundred twenty-three million, one hundred fifty-one thousand, five hundred forty".