31402004031343 has 4 divisors (see below), whose sum is σ = 34256731670568. Its totient is φ = 28547276392120.

The previous prime is 31402004031337. The next prime is 31402004031421. The reversal of 31402004031343 is 34313040020413.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31402004031343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31402004061343) 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, 1427363819596 + ... + 1427363819617.

It is an arithmetic number, because the mean of its divisors is an integer number (8564182917642).

Almost surely, 2^{31402004031343} is an apocalyptic number.

31402004031343 is a deficient number, since it is larger than the sum of its proper divisors (2854727639225).

31402004031343 is a wasteful number, since it uses less digits than its factorization.

31402004031343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2854727639224.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 31402004031343 its reverse (34313040020413), we get a palindrome (65715044051756).

The spelling of 31402004031343 in words is "thirty-one trillion, four hundred two billion, four million, thirty-one thousand, three hundred forty-three".