31103151423 has 4 divisors (see below), whose sum is σ = 41470868568. Its totient is φ = 20735434280.

The previous prime is 31103151407. The next prime is 31103151433. The reversal of 31103151423 is 32415130113.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32415130113 = 3 ⋅10805043371.

It is a cyclic number.

It is not a de Polignac number, because 31103151423 - 2⁴ = 31103151407 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31103151393 and 31103151402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31103151403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5183858568 + ... + 5183858573.

It is an arithmetic number, because the mean of its divisors is an integer number (10367717142).

Almost surely, 2^31103151423 is an apocalyptic number.

31103151423 is a deficient number, since it is larger than the sum of its proper divisors (10367717145).

31103151423 is a wasteful number, since it uses less digits than its factorization.

31103151423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10367717144.

The product of its (nonzero) digits is 1080, while the sum is 24.

Adding to 31103151423 its reverse (32415130113), we get a palindrome (63518281536).

The spelling of 31103151423 in words is "thirty-one billion, one hundred three million, one hundred fifty-one thousand, four hundred twenty-three".