31196537142 has 8 divisors (see below), whose sum is σ = 62393074296. Its totient is φ = 10398845712.

The previous prime is 31196537131. The next prime is 31196537143. The reversal of 31196537142 is 24173569113.

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

31196537142 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 31196537094 and 31196537103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31196537143) 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, 2599711423 + ... + 2599711434.

It is an arithmetic number, because the mean of its divisors is an integer number (7799134287).

Almost surely, 2^31196537142 is an apocalyptic number.

31196537142 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.

31196537142 is a wasteful number, since it uses less digits than its factorization.

31196537142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5199422862.

The product of its digits is 136080, while the sum is 42.

The spelling of 31196537142 in words is "thirty-one billion, one hundred ninety-six million, five hundred thirty-seven thousand, one hundred forty-two".