31503051342 has 48 divisors (see below), whose sum is σ = 78474719232. Its totient is φ = 8946968400.

The previous prime is 31503051317. The next prime is 31503051347. The reversal of 31503051342 is 24315030513.

31503051342 is a `hidden beast` number, since 3 + 15 + 0 + 305 + 1 + 342 = 666.

It is a super-3 number, since 3×31503051342³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31503051347) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 727534 + ... + 769617.

It is an arithmetic number, because the mean of its divisors is an integer number (1634889984).

Almost surely, 2^31503051342 is an apocalyptic number.

31503051342 is an abundant number, since it is smaller than the sum of its proper divisors (46971667890).

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

31503051342 is a wasteful number, since it uses less digits than its factorization.

31503051342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1497333 (or 1497330 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

Adding to 31503051342 its reverse (24315030513), we get a palindrome (55818081855).

The spelling of 31503051342 in words is "thirty-one billion, five hundred three million, fifty-one thousand, three hundred forty-two".