1213013104 has 40 divisors (see below), whose sum is σ = 2490898608. Its totient is φ = 570270720.

The previous prime is 1213013093. The next prime is 1213013111. The reversal of 1213013104 is 4013103121.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

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, 441174 + ... + 443914.

Almost surely, 2^1213013104 is an apocalyptic number.

It is an amenable number.

1213013104 is an abundant number, since it is smaller than the sum of its proper divisors (1277885504).

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

1213013104 is a wasteful number, since it uses less digits than its factorization.

1213013104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4393 (or 4387 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1213013104 is about 34828.3376577177. The cubic root of 1213013104 is about 1066.4860133294.

Adding to 1213013104 its reverse (4013103121), we get a palindrome (5226116225).

The spelling of 1213013104 in words is "one billion, two hundred thirteen million, thirteen thousand, one hundred four".