31423142238 has 8 divisors (see below), whose sum is σ = 62846284488. Its totient is φ = 10474380744.

The previous prime is 31423142237. The next prime is 31423142269. The reversal of 31423142238 is 83224132413.

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

31423142238 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 31423142199 and 31423142208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31423142237) 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, 2618595181 + ... + 2618595192.

It is an arithmetic number, because the mean of its divisors is an integer number (7855785561).

Almost surely, 2^31423142238 is an apocalyptic number.

31423142238 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31423142238 is a wasteful number, since it uses less digits than its factorization.

31423142238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5237190378.

The product of its digits is 27648, while the sum is 33.

The spelling of 31423142238 in words is "thirty-one billion, four hundred twenty-three million, one hundred forty-two thousand, two hundred thirty-eight".