2131421231223 has 12 divisors (see below), whose sum is σ = 3082702385880. Its totient is φ = 1419109258416.

The previous prime is 2131421231221. The next prime is 2131421231227. The reversal of 2131421231223 is 3221321241312.

2131421231223 is a `hidden beast` number, since 2 + 1 + 3 + 1 + 421 + 231 + 2 + 2 + 3 = 666.

It is not a de Polignac number, because 2131421231223 - 2¹ = 2131421231221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131421231221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 153178413 + ... + 153192326.

It is an arithmetic number, because the mean of its divisors is an integer number (256891865490).

Almost surely, 2^{2131421231223} is an apocalyptic number.

2131421231223 is a deficient number, since it is larger than the sum of its proper divisors (951281154657).

2131421231223 is a wasteful number, since it uses less digits than its factorization.

2131421231223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306371518 (or 306371515 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

Adding to 2131421231223 its reverse (3221321241312), we get a palindrome (5352742472535).

The spelling of 2131421231223 in words is "two trillion, one hundred thirty-one billion, four hundred twenty-one million, two hundred thirty-one thousand, two hundred twenty-three".