31103030220101 has 16 divisors (see below), whose sum is σ = 35654329888128. Its totient is φ = 26578735761600.

The previous prime is 31103030220091. The next prime is 31103030220107. The reversal of 31103030220101 is 10102203030113.

It is a cyclic number.

It is not a de Polignac number, because 31103030220101 - 2³⁰ = 31101956478277 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31103030220101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31103030220107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 241304411 + ... + 241433271.

It is an arithmetic number, because the mean of its divisors is an integer number (2228395618008).

Almost surely, 2^{31103030220101} is an apocalyptic number.

It is an amenable number.

31103030220101 is a deficient number, since it is larger than the sum of its proper divisors (4551299668027).

31103030220101 is a wasteful number, since it uses less digits than its factorization.

31103030220101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233372.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 31103030220101 its reverse (10102203030113), we get a palindrome (41205233250214).

The spelling of 31103030220101 in words is "thirty-one trillion, one hundred three billion, thirty million, two hundred twenty thousand, one hundred one".