31213230301122 has 32 divisors (see below), whose sum is σ = 65141251688448. Its totient is φ = 9951953213136.

The previous prime is 31213230301111. The next prime is 31213230301129. The reversal of 31213230301122 is 22110303231213.

It is a junction number, because it is equal to n+sod(n) for n = 31213230301092 and 31213230301101.

It is not an unprimeable number, because it can be changed into a prime (31213230301129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14963223 + ... + 16921125.

It is an arithmetic number, because the mean of its divisors is an integer number (2035664115264).

Almost surely, 2^{31213230301122} is an apocalyptic number.

31213230301122 is an abundant number, since it is smaller than the sum of its proper divisors (33928021387326).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31213230301122 is a wasteful number, since it uses less digits than its factorization.

31213230301122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2073454.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 31213230301122 its reverse (22110303231213), we get a palindrome (53323533532335).

The spelling of 31213230301122 in words is "thirty-one trillion, two hundred thirteen billion, two hundred thirty million, three hundred one thousand, one hundred twenty-two".