1231245330031 has 4 divisors (see below), whose sum is σ = 1232177386864. Its totient is φ = 1230313273200.

The previous prime is 1231245330013. The next prime is 1231245330089. The reversal of 1231245330031 is 1300335421321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1231245330031 - 2³³ = 1222655395439 is a prime.

It is a super-2 number, since 2×1231245330031² (a number of 25 digits) 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 (1231245330001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 466026435 + ... + 466029076.

It is an arithmetic number, because the mean of its divisors is an integer number (308044346716).

Almost surely, 2^{1231245330031} is an apocalyptic number.

1231245330031 is a deficient number, since it is larger than the sum of its proper divisors (932056833).

1231245330031 is an equidigital number, since it uses as much as digits as its factorization.

1231245330031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 932056832.

The product of its (nonzero) digits is 6480, while the sum is 28.

The spelling of 1231245330031 in words is "one trillion, two hundred thirty-one billion, two hundred forty-five million, three hundred thirty thousand, thirty-one".