31020030022 has 4 divisors (see below), whose sum is σ = 46530045036. Its totient is φ = 15510015010.

The previous prime is 31020029987. The next prime is 31020030073. The reversal of 31020030022 is 22003002013.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 31020029984 and 31020030011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7755007504 + ... + 7755007507.

It is an arithmetic number, because the mean of its divisors is an integer number (11632511259).

Almost surely, 2^31020030022 is an apocalyptic number.

31020030022 is a deficient number, since it is larger than the sum of its proper divisors (15510015014).

31020030022 is a wasteful number, since it uses less digits than its factorization.

31020030022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15510015013.

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 31020030022 its reverse (22003002013), we get a palindrome (53023032035).

The spelling of 31020030022 in words is "thirty-one billion, twenty million, thirty thousand, twenty-two".