1125040311431 has 8 divisors (see below), whose sum is σ = 1126602435840. Its totient is φ = 1123479273528.

The previous prime is 1125040311407. The next prime is 1125040311457. The reversal of 1125040311431 is 1341130405211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1125040311431 is a prime.

It is a super-2 number, since 2×1125040311431² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1125040311431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125040311931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1811810 + ... + 2352176.

It is an arithmetic number, because the mean of its divisors is an integer number (140825304480).

Almost surely, 2^{1125040311431} is an apocalyptic number.

1125040311431 is a deficient number, since it is larger than the sum of its proper divisors (1562124409).

1125040311431 is a wasteful number, since it uses less digits than its factorization.

1125040311431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543253.

The product of its (nonzero) digits is 1440, while the sum is 26.

Adding to 1125040311431 its reverse (1341130405211), we get a palindrome (2466170716642).

The spelling of 1125040311431 in words is "one trillion, one hundred twenty-five billion, forty million, three hundred eleven thousand, four hundred thirty-one".