2123031331153 has 2 divisors, whose sum is σ = 2123031331154. Its totient is φ = 2123031331152.

The previous prime is 2123031331151. The next prime is 2123031331177. The reversal of 2123031331153 is 3511331303212.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1956104337664 + 166926993489 = 1398608^2 + 408567^2 .

It is a cyclic number.

It is not a de Polignac number, because 2123031331153 - 2¹ = 2123031331151 is a prime.

Together with 2123031331151, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2123031331151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061515665576 + 1061515665577.

It is an arithmetic number, because the mean of its divisors is an integer number (1061515665577).

Almost surely, 2^{2123031331153} is an apocalyptic number.

It is an amenable number.

2123031331153 is a deficient number, since it is larger than the sum of its proper divisors (1).

2123031331153 is an equidigital number, since it uses as much as digits as its factorization.

2123031331153 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4860, while the sum is 28.

Adding to 2123031331153 its reverse (3511331303212), we get a palindrome (5634362634365).

The spelling of 2123031331153 in words is "two trillion, one hundred twenty-three billion, thirty-one million, three hundred thirty-one thousand, one hundred fifty-three".