31204232343 has 32 divisors (see below), whose sum is σ = 48964953600. Its totient is φ = 19572271488.

The previous prime is 31204232299. The next prime is 31204232351. The reversal of 31204232343 is 34323240213.

31204232343 is a `hidden beast` number, since 3 + 1 + 2 + 0 + 423 + 234 + 3 = 666.

It is not a de Polignac number, because 31204232343 - 2⁹ = 31204231831 is a prime.

It is a super-2 number, since 2×31204232343² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31204232383) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1513180 + ... + 1533662.

It is an arithmetic number, because the mean of its divisors is an integer number (1530154800).

Almost surely, 2^31204232343 is an apocalyptic number.

31204232343 is a deficient number, since it is larger than the sum of its proper divisors (17760721257).

31204232343 is a wasteful number, since it uses less digits than its factorization.

31204232343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23828 (or 23822 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 31204232343 its reverse (34323240213), we get a palindrome (65527472556).

The spelling of 31204232343 in words is "thirty-one billion, two hundred four million, two hundred thirty-two thousand, three hundred forty-three".