13155113451 has 16 divisors (see below), whose sum is σ = 18576000000. Its totient is φ = 8252377728.

The previous prime is 13155113441. The next prime is 13155113471. The reversal of 13155113451 is 15431155131.

It is not a de Polignac number, because 13155113451 - 2⁹ = 13155112939 is a prime.

It is a super-2 number, since 2×13155113451² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13155113441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 229150 + ... + 280748.

It is an arithmetic number, because the mean of its divisors is an integer number (1161000000).

Almost surely, 2^13155113451 is an apocalyptic number.

13155113451 is a deficient number, since it is larger than the sum of its proper divisors (5420886549).

13155113451 is a wasteful number, since it uses less digits than its factorization.

13155113451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56618.

The product of its digits is 4500, while the sum is 30.

Adding to 13155113451 its reverse (15431155131), we get a palindrome (28586268582).

The spelling of 13155113451 in words is "thirteen billion, one hundred fifty-five million, one hundred thirteen thousand, four hundred fifty-one".