31012332122 has 4 divisors (see below), whose sum is σ = 46518498186. Its totient is φ = 15506166060.

The previous prime is 31012332103. The next prime is 31012332137. The reversal of 31012332122 is 22123321013.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 28719741961 + 2292590161 = 169469^2 + 47881^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31012332094 and 31012332103.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7753083029 + ... + 7753083032.

Almost surely, 2^31012332122 is an apocalyptic number.

31012332122 is a deficient number, since it is larger than the sum of its proper divisors (15506166064).

31012332122 is a wasteful number, since it uses less digits than its factorization.

31012332122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15506166063.

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

Adding to 31012332122 its reverse (22123321013), we get a palindrome (53135653135).

The spelling of 31012332122 in words is "thirty-one billion, twelve million, three hundred thirty-two thousand, one hundred twenty-two".