31011332122 has 8 divisors (see below), whose sum is σ = 47394677556. Its totient is φ = 15213106272.

The previous prime is 31011332113. The next prime is 31011332129. The reversal of 31011332122 is 22123311013.

It can be written as a sum of positive squares in 2 ways, for example, as 29580904081 + 1430428041 = 171991^2 + 37821^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 31011332122.

It is not an unprimeable number, because it can be changed into a prime (31011332129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146279763 + ... + 146279974.

Almost surely, 2^31011332122 is an apocalyptic number.

31011332122 is a deficient number, since it is larger than the sum of its proper divisors (16383345434).

31011332122 is a wasteful number, since it uses less digits than its factorization.

31011332122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292559792.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 31011332122 its reverse (22123311013), we get a palindrome (53134643135).

The spelling of 31011332122 in words is "thirty-one billion, eleven million, three hundred thirty-two thousand, one hundred twenty-two".