1513111212 has 48 divisors (see below), whose sum is σ = 4093447680. Its totient is φ = 482440464.

The previous prime is 1513111181. The next prime is 1513111217. The reversal of 1513111212 is 2121113151.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1513111217) 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, 302088 + ... + 307055.

It is an arithmetic number, because the mean of its divisors is an integer number (85280160).

Almost surely, 2^1513111212 is an apocalyptic number.

1513111212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1513111212 is an abundant number, since it is smaller than the sum of its proper divisors (2580336468).

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

1513111212 is a wasteful number, since it uses less digits than its factorization.

1513111212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609179 (or 609171 counting only the distinct ones).

The product of its digits is 60, while the sum is 18.

The square root of 1513111212 is about 38898.7302106380. The cubic root of 1513111212 is about 1148.0398143670.

Adding to 1513111212 its reverse (2121113151), we get a palindrome (3634224363).

The spelling of 1513111212 in words is "one billion, five hundred thirteen million, one hundred eleven thousand, two hundred twelve".