31434323331 has 16 divisors (see below), whose sum is σ = 44400502944. Its totient is φ = 19713437184.

The previous prime is 31434323303. The next prime is 31434323413. The reversal of 31434323331 is 13332343413.

It is not a de Polignac number, because 31434323331 - 2⁷ = 31434323203 is a prime.

It is a super-2 number, since 2×31434323331² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31434323131) 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, 55576 + ... + 256821.

It is an arithmetic number, because the mean of its divisors is an integer number (2775031434).

Almost surely, 2^31434323331 is an apocalyptic number.

31434323331 is a deficient number, since it is larger than the sum of its proper divisors (12966179613).

31434323331 is a wasteful number, since it uses less digits than its factorization.

31434323331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314390.

The product of its digits is 23328, while the sum is 30.

Adding to 31434323331 its reverse (13332343413), we get a palindrome (44766666744).

The spelling of 31434323331 in words is "thirty-one billion, four hundred thirty-four million, three hundred twenty-three thousand, three hundred thirty-one".