1031104500431 has 4 divisors (see below), whose sum is σ = 1033010424264. Its totient is φ = 1029198576600.

The previous prime is 1031104500427. The next prime is 1031104500449. The reversal of 1031104500431 is 1340054011301.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1031104500431 - 2² = 1031104500427 is a prime.

It is a super-2 number, since 2×1031104500431² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1031104500397 and 1031104500406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031104500401) 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, 952961105 + ... + 952962186.

It is an arithmetic number, because the mean of its divisors is an integer number (258252606066).

Almost surely, 2^{1031104500431} is an apocalyptic number.

1031104500431 is a deficient number, since it is larger than the sum of its proper divisors (1905923833).

1031104500431 is an equidigital number, since it uses as much as digits as its factorization.

1031104500431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1905923832.

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

Adding to 1031104500431 its reverse (1340054011301), we get a palindrome (2371158511732).

The spelling of 1031104500431 in words is "one trillion, thirty-one billion, one hundred four million, five hundred thousand, four hundred thirty-one".