1252013253101 has 4 divisors (see below), whose sum is σ = 1348321964892. Its totient is φ = 1155704541312.

The previous prime is 1252013253077. The next prime is 1252013253143. The reversal of 1252013253101 is 1013523102521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 637999965001 + 614013288100 = 798749^2 + 783590^2 .

It is a cyclic number.

It is not a de Polignac number, because 1252013253101 - 2⁶ = 1252013253037 is a prime.

It is a super-2 number, since 2×1252013253101² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252012253101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48154355876 + ... + 48154355901.

It is an arithmetic number, because the mean of its divisors is an integer number (337080491223).

Almost surely, 2^{1252013253101} is an apocalyptic number.

It is an amenable number.

1252013253101 is a deficient number, since it is larger than the sum of its proper divisors (96308711791).

1252013253101 is an equidigital number, since it uses as much as digits as its factorization.

1252013253101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96308711790.

The product of its (nonzero) digits is 1800, while the sum is 26.

Adding to 1252013253101 its reverse (1013523102521), we get a palindrome (2265536355622).

The spelling of 1252013253101 in words is "one trillion, two hundred fifty-two billion, thirteen million, two hundred fifty-three thousand, one hundred one".