1513111133225 has 12 divisors (see below), whose sum is σ = 1957834232256. Its totient is φ = 1157858953680.

The previous prime is 1513111133221. The next prime is 1513111133251. The reversal of 1513111133225 is 5223311113151.

It is a happy number.

It is not a de Polignac number, because 1513111133225 - 2² = 1513111133221 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1513111133221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1315748237 + ... + 1315749386.

It is an arithmetic number, because the mean of its divisors is an integer number (163152852688).

Almost surely, 2^{1513111133225} is an apocalyptic number.

It is an amenable number.

1513111133225 is a deficient number, since it is larger than the sum of its proper divisors (444723099031).

1513111133225 is a wasteful number, since it uses less digits than its factorization.

1513111133225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2631497656 (or 2631497651 counting only the distinct ones).

The product of its digits is 2700, while the sum is 29.

Adding to 1513111133225 its reverse (5223311113151), we get a palindrome (6736422246376).

The spelling of 1513111133225 in words is "one trillion, five hundred thirteen billion, one hundred eleven million, one hundred thirty-three thousand, two hundred twenty-five".