31012222130 has 16 divisors (see below), whose sum is σ = 57746896920. Its totient is φ = 11977133952.

The previous prime is 31012222127. The next prime is 31012222133. The reversal of 31012222130 is 3122221013.

It is an interprime number because it is at equal distance from previous prime (31012222127) and next prime (31012222133).

It can be written as a sum of positive squares in 4 ways, for example, as 20940694681 + 10071527449 = 144709^2 + 100357^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31012222099 and 31012222108.

It is not an unprimeable number, because it can be changed into a prime (31012222133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53469059 + ... + 53469638.

Almost surely, 2^31012222130 is an apocalyptic number.

31012222130 is a deficient number, since it is larger than the sum of its proper divisors (26734674790).

31012222130 is a wasteful number, since it uses less digits than its factorization.

31012222130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106938733.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 31012222130 its reverse (3122221013), we get a palindrome (34134443143).

The spelling of 31012222130 in words is "thirty-one billion, twelve million, two hundred twenty-two thousand, one hundred thirty".