31020010330030 has 16 divisors (see below), whose sum is σ = 55850420525760. Its totient is φ = 12404803702752.

The previous prime is 31020010330019. The next prime is 31020010330031. The reversal of 31020010330030 is 3003301002013.

It is a junction number, because it is equal to n+sod(n) for n = 31020010329986 and 31020010330013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31020010330031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 400012950 + ... + 400090489.

It is an arithmetic number, because the mean of its divisors is an integer number (3490651282860).

Almost surely, 2^{31020010330030} is an apocalyptic number.

31020010330030 is a deficient number, since it is larger than the sum of its proper divisors (24830410195730).

31020010330030 is a wasteful number, since it uses less digits than its factorization.

31020010330030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800107323.

The product of its (nonzero) digits is 162, while the sum is 16.

Adding to 31020010330030 its reverse (3003301002013), we get a palindrome (34023311332043).

The spelling of 31020010330030 in words is "thirty-one trillion, twenty billion, ten million, three hundred thirty thousand, thirty".