31311130232222 has 8 divisors (see below), whose sum is σ = 48058944077496. Its totient is φ = 15291482206392.

The previous prime is 31311130232189. The next prime is 31311130232243. The reversal of 31311130232222 is 22223203111313.

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

It is a junction number, because it is equal to n+sod(n) for n = 31311130232191 and 31311130232200.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182041454753 + ... + 182041454924.

It is an arithmetic number, because the mean of its divisors is an integer number (6007368009687).

Almost surely, 2^{31311130232222} is an apocalyptic number.

31311130232222 is a deficient number, since it is larger than the sum of its proper divisors (16747813845274).

31311130232222 is a wasteful number, since it uses less digits than its factorization.

31311130232222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364082909722.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 31311130232222 its reverse (22223203111313), we get a palindrome (53534333343535).

The spelling of 31311130232222 in words is "thirty-one trillion, three hundred eleven billion, one hundred thirty million, two hundred thirty-two thousand, two hundred twenty-two".