1031544100001 has 4 divisors (see below), whose sum is σ = 1035971328132. Its totient is φ = 1027116871872.

The previous prime is 1031544099991. The next prime is 1031544100009. The reversal of 1031544100001 is 1000014451301.

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 607345896976 + 424198203025 = 779324^2 + 651305^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1031544100001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1031544100009) 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, 2213613716 + ... + 2213614181.

It is an arithmetic number, because the mean of its divisors is an integer number (258992832033).

Almost surely, 2^{1031544100001} is an apocalyptic number.

It is an amenable number.

1031544100001 is a deficient number, since it is larger than the sum of its proper divisors (4427228131).

1031544100001 is an equidigital number, since it uses as much as digits as its factorization.

1031544100001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4427228130.

The product of its (nonzero) digits is 240, while the sum is 20.

Adding to 1031544100001 its reverse (1000014451301), we get a palindrome (2031558551302).

The spelling of 1031544100001 in words is "one trillion, thirty-one billion, five hundred forty-four million, one hundred thousand, one".