31203101109 has 16 divisors (see below), whose sum is σ = 43366321088. Its totient is φ = 19937757312.

The previous prime is 31203101099. The next prime is 31203101117. The reversal of 31203101109 is 90110130213.

It is not a de Polignac number, because 31203101109 - 2⁸ = 31203100853 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 (31203101159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2090392 + ... + 2105265.

It is an arithmetic number, because the mean of its divisors is an integer number (2710395068).

Almost surely, 2^31203101109 is an apocalyptic number.

It is an amenable number.

31203101109 is a deficient number, since it is larger than the sum of its proper divisors (12163219979).

31203101109 is a wasteful number, since it uses less digits than its factorization.

31203101109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4195764.

The product of its (nonzero) digits is 162, while the sum is 21.

The spelling of 31203101109 in words is "thirty-one billion, two hundred three million, one hundred one thousand, one hundred nine".