31650401423 has 4 divisors (see below), whose sum is σ = 33512189760. Its totient is φ = 29788613088.

The previous prime is 31650401413. The next prime is 31650401473. The reversal of 31650401423 is 32410405613.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32410405613 = 1439 ⋅22522867.

It is a cyclic number.

It is not a de Polignac number, because 31650401423 - 2¹² = 31650397327 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31650401413) 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, 930894143 + ... + 930894176.

It is an arithmetic number, because the mean of its divisors is an integer number (8378047440).

Almost surely, 2^31650401423 is an apocalyptic number.

31650401423 is a deficient number, since it is larger than the sum of its proper divisors (1861788337).

31650401423 is a wasteful number, since it uses less digits than its factorization.

31650401423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1861788336.

The product of its (nonzero) digits is 8640, while the sum is 29.

The spelling of 31650401423 in words is "thirty-one billion, six hundred fifty million, four hundred one thousand, four hundred twenty-three".