31323431351434 has 32 divisors (see below), whose sum is σ = 47821962988800. Its totient is φ = 15383231173440.

The previous prime is 31323431351347. The next prime is 31323431351437. The reversal of 31323431351434 is 43415313432313.

It is a super-2 number, since 2×31323431351434² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31323431351437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 938963247 + ... + 938996605.

It is an arithmetic number, because the mean of its divisors is an integer number (1494436343400).

Almost surely, 2^{31323431351434} is an apocalyptic number.

31323431351434 is a deficient number, since it is larger than the sum of its proper divisors (16498531637366).

31323431351434 is a wasteful number, since it uses less digits than its factorization.

31323431351434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39918.

The product of its digits is 466560, while the sum is 40.

Adding to 31323431351434 its reverse (43415313432313), we get a palindrome (74738744783747).

The spelling of 31323431351434 in words is "thirty-one trillion, three hundred twenty-three billion, four hundred thirty-one million, three hundred fifty-one thousand, four hundred thirty-four".