1311031102553 has 4 divisors (see below), whose sum is σ = 1313950994100. Its totient is φ = 1308111211008.

The previous prime is 1311031102543. The next prime is 1311031102603. The reversal of 1311031102553 is 3552011301131.

It is a happy number.

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 1146801108544 + 164229994009 = 1070888^2 + 405253^2 .

It is a cyclic number.

It is not a de Polignac number, because 1311031102553 - 2³⁴ = 1293851233369 is a prime.

It is a super-2 number, since 2×1311031102553² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1311031102543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1459945100 + ... + 1459945997.

It is an arithmetic number, because the mean of its divisors is an integer number (328487748525).

Almost surely, 2^{1311031102553} is an apocalyptic number.

It is an amenable number.

1311031102553 is a deficient number, since it is larger than the sum of its proper divisors (2919891547).

1311031102553 is an equidigital number, since it uses as much as digits as its factorization.

1311031102553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2919891546.

The product of its (nonzero) digits is 1350, while the sum is 26.

Adding to 1311031102553 its reverse (3552011301131), we get a palindrome (4863042403684).

The spelling of 1311031102553 in words is "one trillion, three hundred eleven billion, thirty-one million, one hundred two thousand, five hundred fifty-three".