31345140534 has 32 divisors (see below), whose sum is σ = 63088865280. Its totient is φ = 10382154912.

The previous prime is 31345140529. The next prime is 31345140539. The reversal of 31345140534 is 43504154313.

It is an interprime number because it is at equal distance from previous prime (31345140529) and next prime (31345140539).

It is a super-3 number, since 3×31345140534³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31345140495 and 31345140504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31345140539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 592809 + ... + 643515.

It is an arithmetic number, because the mean of its divisors is an integer number (1971527040).

Almost surely, 2^31345140534 is an apocalyptic number.

31345140534 is an abundant number, since it is smaller than the sum of its proper divisors (31743724746).

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

31345140534 is a wasteful number, since it uses less digits than its factorization.

31345140534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51364.

The product of its (nonzero) digits is 43200, while the sum is 33.

Adding to 31345140534 its reverse (43504154313), we get a palindrome (74849294847).

The spelling of 31345140534 in words is "thirty-one billion, three hundred forty-five million, one hundred forty thousand, five hundred thirty-four".