2131020131233 has 4 divisors (see below), whose sum is σ = 2435451578560. Its totient is φ = 1826588683908.

The previous prime is 2131020131231. The next prime is 2131020131257. The reversal of 2131020131233 is 3321310201312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2131020131233 - 2¹ = 2131020131231 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2131020131231) 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, 152215723653 + ... + 152215723666.

It is an arithmetic number, because the mean of its divisors is an integer number (608862894640).

Almost surely, 2^{2131020131233} is an apocalyptic number.

It is an amenable number.

2131020131233 is a deficient number, since it is larger than the sum of its proper divisors (304431447327).

2131020131233 is an equidigital number, since it uses as much as digits as its factorization.

2131020131233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304431447326.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 2131020131233 its reverse (3321310201312), we get a palindrome (5452330332545).

The spelling of 2131020131233 in words is "two trillion, one hundred thirty-one billion, twenty million, one hundred thirty-one thousand, two hundred thirty-three".