13455120424 has 32 divisors (see below), whose sum is σ = 26717743080. Its totient is φ = 6330548224.

The previous prime is 13455120409. The next prime is 13455120439. The reversal of 13455120424 is 42402155431.

It is an interprime number because it is at equal distance from previous prime (13455120409) and next prime (13455120439).

It can be written as a sum of positive squares in 4 ways, for example, as 11455420900 + 1999699524 = 107030^2 + 44718^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1335534 + ... + 1345570.

Almost surely, 2^13455120424 is an apocalyptic number.

It is an amenable number.

13455120424 is a deficient number, since it is larger than the sum of its proper divisors (13262622656).

13455120424 is a wasteful number, since it uses less digits than its factorization.

13455120424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19917 (or 19913 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 13455120424 its reverse (42402155431), we get a palindrome (55857275855).

The spelling of 13455120424 in words is "thirteen billion, four hundred fifty-five million, one hundred twenty thousand, four hundred twenty-four".