1002123222131 has 2 divisors, whose sum is σ = 1002123222132. Its totient is φ = 1002123222130.

The previous prime is 1002123222103. The next prime is 1002123222137. The reversal of 1002123222131 is 1312223212001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1002123222131 - 2¹⁴ = 1002123205747 is a prime.

It is a super-2 number, since 2×1002123222131² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1002123222137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501061611065 + 501061611066.

It is an arithmetic number, because the mean of its divisors is an integer number (501061611066).

Almost surely, 2^{1002123222131} is an apocalyptic number.

1002123222131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002123222131 is an equidigital number, since it uses as much as digits as its factorization.

1002123222131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1002123222131 its reverse (1312223212001), we get a palindrome (2314346434132).

The spelling of 1002123222131 in words is "one trillion, two billion, one hundred twenty-three million, two hundred twenty-two thousand, one hundred thirty-one".