1231010100233 has 16 divisors (see below), whose sum is σ = 1290328341120. Its totient is φ = 1172180545536.

The previous prime is 1231010100193. The next prime is 1231010100239. The reversal of 1231010100233 is 3320010101321.

It is a cyclic number.

It is not a de Polignac number, because 1231010100233 - 2²² = 1231005905929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1231010100239) 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, 9612698 + ... + 9739916.

It is an arithmetic number, because the mean of its divisors is an integer number (80645521320).

Almost surely, 2^{1231010100233} is an apocalyptic number.

It is an amenable number.

1231010100233 is a deficient number, since it is larger than the sum of its proper divisors (59318240887).

1231010100233 is a wasteful number, since it uses less digits than its factorization.

1231010100233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129136.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 1231010100233 its reverse (3320010101321), we get a palindrome (4551020201554).

The spelling of 1231010100233 in words is "one trillion, two hundred thirty-one billion, ten million, one hundred thousand, two hundred thirty-three".