31321122101030 has 16 divisors (see below), whose sum is σ = 56959236482400. Its totient is φ = 12399289573632.

The previous prime is 31321122101029. The next prime is 31321122101033. The reversal of 31321122101030 is 3010122112313.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 31321122100993 and 31321122101011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31321122101033) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 16144907330 + ... + 16144909269.

It is an arithmetic number, because the mean of its divisors is an integer number (3559952280150).

Almost surely, 2^{31321122101030} is an apocalyptic number.

31321122101030 is a deficient number, since it is larger than the sum of its proper divisors (25638114381370).

31321122101030 is a wasteful number, since it uses less digits than its factorization.

31321122101030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32289816703.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 31321122101030 its reverse (3010122112313), we get a palindrome (34331244213343).

The spelling of 31321122101030 in words is "thirty-one trillion, three hundred twenty-one billion, one hundred twenty-two million, one hundred one thousand, thirty".