31423431322 has 8 divisors (see below), whose sum is σ = 47154983796. Its totient is φ = 15705103392.

The previous prime is 31423431293. The next prime is 31423431341. The reversal of 31423431322 is 22313432413.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 26127812881 + 5295618441 = 161641^2 + 72771^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×31423431322³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3300193 + ... + 3309700.

Almost surely, 2^31423431322 is an apocalyptic number.

31423431322 is a deficient number, since it is larger than the sum of its proper divisors (15731552474).

31423431322 is a wasteful number, since it uses less digits than its factorization.

31423431322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6612272.

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

Adding to 31423431322 its reverse (22313432413), we get a palindrome (53736863735).

The spelling of 31423431322 in words is "thirty-one billion, four hundred twenty-three million, four hundred thirty-one thousand, three hundred twenty-two".