13031445224 has 32 divisors (see below), whose sum is σ = 28518670080. Its totient is φ = 5466076224.

The previous prime is 13031445209. The next prime is 13031445257. The reversal of 13031445224 is 42254413031.

It is a super-2 number, since 2×13031445224² (a number of 21 digits) contains 22 as substring.

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, 2472947 + ... + 2478210.

It is an arithmetic number, because the mean of its divisors is an integer number (891208440).

Almost surely, 2^13031445224 is an apocalyptic number.

13031445224 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13031445224 is an abundant number, since it is smaller than the sum of its proper divisors (15487224856).

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

13031445224 is a wasteful number, since it uses less digits than its factorization.

13031445224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4951217 (or 4951213 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 13031445224 its reverse (42254413031), we get a palindrome (55285858255).

The spelling of 13031445224 in words is "thirteen billion, thirty-one million, four hundred forty-five thousand, two hundred twenty-four".