1231301133333 has 32 divisors (see below), whose sum is σ = 1972053897600. Its totient is φ = 756645919488.

The previous prime is 1231301133317. The next prime is 1231301133347. The reversal of 1231301133333 is 3333311031321.

1231301133333 is a `hidden beast` number, since 1 + 2 + 313 + 0 + 1 + 13 + 3 + 333 = 666.

It is not a de Polignac number, because 1231301133333 - 2⁴ = 1231301133317 is a prime.

It is a super-2 number, since 2×1231301133333² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1231301133297 and 1231301133306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231301133353) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32416116 + ... + 32454077.

It is an arithmetic number, because the mean of its divisors is an integer number (61626684300).

Almost surely, 2^{1231301133333} is an apocalyptic number.

It is an amenable number.

1231301133333 is a deficient number, since it is larger than the sum of its proper divisors (740752764267).

1231301133333 is a wasteful number, since it uses less digits than its factorization.

1231301133333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64870258 (or 64870252 counting only the distinct ones).

The product of its (nonzero) digits is 4374, while the sum is 27.

Adding to 1231301133333 its reverse (3333311031321), we get a palindrome (4564612164654).

The spelling of 1231301133333 in words is "one trillion, two hundred thirty-one billion, three hundred one million, one hundred thirty-three thousand, three hundred thirty-three".