1213023110 has 16 divisors (see below), whose sum is σ = 2351398896. Its totient is φ = 447885408.

The previous prime is 1213023109. The next prime is 1213023113. The reversal of 1213023110 is 113203121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213023113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4665344 + ... + 4665603.

It is an arithmetic number, because the mean of its divisors is an integer number (146962431).

Almost surely, 2^1213023110 is an apocalyptic number.

1213023110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1213023110 is a deficient number, since it is larger than the sum of its proper divisors (1138375786).

1213023110 is a wasteful number, since it uses less digits than its factorization.

1213023110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9330967.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1213023110 is about 34828.4813048172. The cubic root of 1213023110 is about 1066.4889457599.

Adding to 1213023110 its reverse (113203121), we get a palindrome (1326226231).

The spelling of 1213023110 in words is "one billion, two hundred thirteen million, twenty-three thousand, one hundred ten".