201031323122 has 16 divisors (see below), whose sum is σ = 348777237312. Its totient is φ = 85118253360.

The previous prime is 201031323091. The next prime is 201031323131. The reversal of 201031323122 is 221323130102.

It is a junction number, because it is equal to n+sod(n) for n = 201031323094 and 201031323103.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86501129 + ... + 86503452.

It is an arithmetic number, because the mean of its divisors is an integer number (21798577332).

Almost surely, 2^201031323122 is an apocalyptic number.

201031323122 is a deficient number, since it is larger than the sum of its proper divisors (147745914190).

201031323122 is a wasteful number, since it uses less digits than its factorization.

201031323122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173004673.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 201031323122 its reverse (221323130102), we get a palindrome (422354453224).

The spelling of 201031323122 in words is "two hundred one billion, thirty-one million, three hundred twenty-three thousand, one hundred twenty-two".