31343401433 has 16 divisors (see below), whose sum is σ = 33574934400. Its totient is φ = 29171249280.

The previous prime is 31343401429. The next prime is 31343401493. The reversal of 31343401433 is 33410434313.

It is a cyclic number.

It is not a de Polignac number, because 31343401433 - 2² = 31343401429 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31343401396 and 31343401405.

It is not an unprimeable number, because it can be changed into a prime (31343401403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 956285 + ... + 988517.

It is an arithmetic number, because the mean of its divisors is an integer number (2098433400).

Almost surely, 2^31343401433 is an apocalyptic number.

It is an amenable number.

31343401433 is a deficient number, since it is larger than the sum of its proper divisors (2231532967).

31343401433 is a wasteful number, since it uses less digits than its factorization.

31343401433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33152.

The product of its (nonzero) digits is 15552, while the sum is 29.

Adding to 31343401433 its reverse (33410434313), we get a palindrome (64753835746).

The spelling of 31343401433 in words is "thirty-one billion, three hundred forty-three million, four hundred one thousand, four hundred thirty-three".