1213001300 has 36 divisors (see below), whose sum is σ = 3008244960. Its totient is φ = 415885920.

The previous prime is 1213001281. The next prime is 1213001353. The reversal of 1213001300 is 31003121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 865730 + ... + 867129.

It is an arithmetic number, because the mean of its divisors is an integer number (83562360).

Almost surely, 2^1213001300 is an apocalyptic number.

1213001300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1213001300 is an abundant number, since it is smaller than the sum of its proper divisors (1795243660).

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

1213001300 is a wasteful number, since it uses less digits than its factorization.

1213001300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1732880 (or 1732873 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 1213001300 is about 34828.1681975955. The cubic root of 1213001300 is about 1066.4825539434.

Adding to 1213001300 its reverse (31003121), we get a palindrome (1244004421).

The spelling of 1213001300 in words is "one billion, two hundred thirteen million, one thousand, three hundred".