31142310223 has 2 divisors, whose sum is σ = 31142310224. Its totient is φ = 31142310222.

The previous prime is 31142310211. The next prime is 31142310271. The reversal of 31142310223 is 32201324113.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31142310223 - 2⁵ = 31142310191 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31142310194 and 31142310203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31142310203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15571155111 + 15571155112.

It is an arithmetic number, because the mean of its divisors is an integer number (15571155112).

Almost surely, 2^31142310223 is an apocalyptic number.

31142310223 is a deficient number, since it is larger than the sum of its proper divisors (1).

31142310223 is an equidigital number, since it uses as much as digits as its factorization.

31142310223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 31142310223 its reverse (32201324113), we get a palindrome (63343634336).

The spelling of 31142310223 in words is "thirty-one billion, one hundred forty-two million, three hundred ten thousand, two hundred twenty-three".