31103341122431 has 4 divisors (see below), whose sum is σ = 31108355370312. Its totient is φ = 31098326874552.

The previous prime is 31103341122391. The next prime is 31103341122433. The reversal of 31103341122431 is 13422114330113.

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 31103341122431 - 2¹⁸ = 31103340860287 is a prime.

It is a super-2 number, since 2×31103341122431² (a number of 28 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 = 31103341122394 and 31103341122403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31103341122433) 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, 2507114636 + ... + 2507127041.

It is an arithmetic number, because the mean of its divisors is an integer number (7777088842578).

Almost surely, 2^{31103341122431} is an apocalyptic number.

31103341122431 is a deficient number, since it is larger than the sum of its proper divisors (5014247881).

31103341122431 is an equidigital number, since it uses as much as digits as its factorization.

31103341122431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5014247880.

The product of its (nonzero) digits is 5184, while the sum is 29.

Adding to 31103341122431 its reverse (13422114330113), we get a palindrome (44525455452544).

The spelling of 31103341122431 in words is "thirty-one trillion, one hundred three billion, three hundred forty-one million, one hundred twenty-two thousand, four hundred thirty-one".