2100123123331 has 2 divisors, whose sum is σ = 2100123123332. Its totient is φ = 2100123123330.

The previous prime is 2100123123317. The next prime is 2100123123341. The reversal of 2100123123331 is 1333213210012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2100123123331 - 2¹⁵ = 2100123090563 is a prime.

It is a super-2 number, since 2×2100123123331² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2100123123341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050061561665 + 1050061561666.

It is an arithmetic number, because the mean of its divisors is an integer number (1050061561666).

Almost surely, 2^{2100123123331} is an apocalyptic number.

2100123123331 is a deficient number, since it is larger than the sum of its proper divisors (1).

2100123123331 is an equidigital number, since it uses as much as digits as its factorization.

2100123123331 is an evil number, because the sum of its binary digits is even.

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

Adding to 2100123123331 its reverse (1333213210012), we get a palindrome (3433336333343).

The spelling of 2100123123331 in words is "two trillion, one hundred billion, one hundred twenty-three million, one hundred twenty-three thousand, three hundred thirty-one".