1213300231 has 16 divisors (see below), whose sum is σ = 1474572960. Its totient is φ = 983041920.

The previous prime is 1213300219. The next prime is 1213300241. The reversal of 1213300231 is 1320033121.

It is a cyclic number.

It is not a de Polignac number, because 1213300231 - 2⁹ = 1213299719 is a prime.

It is a super-2 number, since 2×1213300231² = 2944194901089306722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213300211) 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, 142140 + ... + 150433.

It is an arithmetic number, because the mean of its divisors is an integer number (92160810).

Almost surely, 2^1213300231 is an apocalyptic number.

1213300231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1213300231 is a deficient number, since it is larger than the sum of its proper divisors (261272729).

1213300231 is a wasteful number, since it uses less digits than its factorization.

1213300231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292626.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1213300231 is about 34832.4594451784. The cubic root of 1213300231 is about 1066.5701544297.

Adding to 1213300231 its reverse (1320033121), we get a palindrome (2533333352).

The spelling of 1213300231 in words is "one billion, two hundred thirteen million, three hundred thousand, two hundred thirty-one".