31020022110113 has 8 divisors (see below), whose sum is σ = 32140333843368. Its totient is φ = 29914548943104.

The previous prime is 31020022110101. The next prime is 31020022110193. The reversal of 31020022110113 is 31101122002013.

It can be written as a sum of positive squares in 4 ways, for example, as 3002987465569 + 28017034644544 = 1732913^2 + 5293112^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31020022110113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31020022110091 and 31020022110100.

It is not an unprimeable number, because it can be changed into a prime (31020022110193) 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, 3709637306 + ... + 3709645667.

It is an arithmetic number, because the mean of its divisors is an integer number (4017541730421).

Almost surely, 2^{31020022110113} is an apocalyptic number.

It is an amenable number.

31020022110113 is a deficient number, since it is larger than the sum of its proper divisors (1120311733255).

31020022110113 is a wasteful number, since it uses less digits than its factorization.

31020022110113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7419283123.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 31020022110113 its reverse (31101122002013), we get a palindrome (62121144112126).

The spelling of 31020022110113 in words is "thirty-one trillion, twenty billion, twenty-two million, one hundred ten thousand, one hundred thirteen".