31004232122 has 16 divisors (see below), whose sum is σ = 47645822400. Its totient is φ = 15123169152.

The previous prime is 31004232121. The next prime is 31004232131. The reversal of 31004232122 is 22123240013.

It is a super-2 number, since 2×31004232122² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31004232094 and 31004232103.

It is not an unprimeable number, because it can be changed into a prime (31004232121) 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, 148247 + ... + 289802.

It is an arithmetic number, because the mean of its divisors is an integer number (2977863900).

Almost surely, 2^31004232122 is an apocalyptic number.

31004232122 is a deficient number, since it is larger than the sum of its proper divisors (16641590278).

31004232122 is a wasteful number, since it uses less digits than its factorization.

31004232122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438917.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 31004232122 its reverse (22123240013), we get a palindrome (53127472135).

The spelling of 31004232122 in words is "thirty-one billion, four million, two hundred thirty-two thousand, one hundred twenty-two".