1253002121123 has 2 divisors, whose sum is σ = 1253002121124. Its totient is φ = 1253002121122.

The previous prime is 1253002121101. The next prime is 1253002121143. The reversal of 1253002121123 is 3211212003521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1253002121123 - 2²² = 1252997926819 is a prime.

It is a super-2 number, since 2×1253002121123² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1253002121143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626501060561 + 626501060562.

It is an arithmetic number, because the mean of its divisors is an integer number (626501060562).

Almost surely, 2^{1253002121123} is an apocalyptic number.

1253002121123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1253002121123 is an equidigital number, since it uses as much as digits as its factorization.

1253002121123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 1253002121123 its reverse (3211212003521), we get a palindrome (4464214124644).

The spelling of 1253002121123 in words is "one trillion, two hundred fifty-three billion, two million, one hundred twenty-one thousand, one hundred twenty-three".