31103103201133 has 4 divisors (see below), whose sum is σ = 32932697507100. Its totient is φ = 29273508895168.

The previous prime is 31103103201127. The next prime is 31103103201139. The reversal of 31103103201133 is 33110230130113.

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

It is an interprime number because it is at equal distance from previous prime (31103103201127) and next prime (31103103201139).

It can be written as a sum of positive squares in 2 ways, for example, as 26123680543689 + 4979422657444 = 5111133^2 + 2231462^2 .

It is a cyclic number.

It is not a de Polignac number, because 31103103201133 - 2⁴¹ = 28904079945581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31103103201139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 914797152958 + ... + 914797152991.

It is an arithmetic number, because the mean of its divisors is an integer number (8233174376775).

Almost surely, 2^{31103103201133} is an apocalyptic number.

It is an amenable number.

31103103201133 is a deficient number, since it is larger than the sum of its proper divisors (1829594305967).

31103103201133 is a wasteful number, since it uses less digits than its factorization.

31103103201133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1829594305966.

The product of its (nonzero) digits is 486, while the sum is 22.

Adding to 31103103201133 its reverse (33110230130113), we get a palindrome (64213333331246).

The spelling of 31103103201133 in words is "thirty-one trillion, one hundred three billion, one hundred three million, two hundred one thousand, one hundred thirty-three".