2123312031301 has 6 divisors (see below), whose sum is σ = 2129631470610. Its totient is φ = 2117011288896.

The previous prime is 2123312031293. The next prime is 2123312031319. The reversal of 2123312031301 is 1031302133212.

It can be written as a sum of positive squares in 3 ways, for example, as 122993997025 + 2000318034276 = 350705^2 + 1414326^2 .

It is not a de Polignac number, because 2123312031301 - 2³ = 2123312031293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123312034301) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9234546 + ... + 9461683.

It is an arithmetic number, because the mean of its divisors is an integer number (354938578435).

Almost surely, 2^{2123312031301} is an apocalyptic number.

It is an amenable number.

2123312031301 is a deficient number, since it is larger than the sum of its proper divisors (6319439309).

2123312031301 is an frugal number, since it uses more digits than its factorization.

2123312031301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18696903 (or 18696566 counting only the distinct ones).

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

Adding to 2123312031301 its reverse (1031302133212), we get a palindrome (3154614164513).

The spelling of 2123312031301 in words is "two trillion, one hundred twenty-three billion, three hundred twelve million, thirty-one thousand, three hundred one".