2123220133131 has 4 divisors (see below), whose sum is σ = 2830960177512. Its totient is φ = 1415480088752.

The previous prime is 2123220133129. The next prime is 2123220133189. The reversal of 2123220133131 is 1313310223212.

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 2123220133131 - 2¹ = 2123220133129 is a prime.

It is a super-2 number, since 2×2123220133131² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2123220133631) 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, 353870022186 + ... + 353870022191.

It is an arithmetic number, because the mean of its divisors is an integer number (707740044378).

Almost surely, 2^{2123220133131} is an apocalyptic number.

2123220133131 is a deficient number, since it is larger than the sum of its proper divisors (707740044381).

2123220133131 is an equidigital number, since it uses as much as digits as its factorization.

2123220133131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707740044380.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 2123220133131 its reverse (1313310223212), we get a palindrome (3436530356343).

The spelling of 2123220133131 in words is "two trillion, one hundred twenty-three billion, two hundred twenty million, one hundred thirty-three thousand, one hundred thirty-one".