3161050021100 has 36 divisors (see below), whose sum is σ = 6904905589008. Its totient is φ = 1256046360000.

The previous prime is 3161050021091. The next prime is 3161050021109. The reversal of 3161050021100 is 11200501613.

It is an interprime number because it is at equal distance from previous prime (3161050021091) and next prime (3161050021109).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (3161050021109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 104655431 + ... + 104685630.

It is an arithmetic number, because the mean of its divisors is an integer number (191802933028).

Almost surely, 2^{3161050021100} is an apocalyptic number.

It is an amenable number.

3161050021100 is an abundant number, since it is smaller than the sum of its proper divisors (3743855567908).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3161050021100 is a wasteful number, since it uses less digits than its factorization.

3161050021100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209341226 (or 209341219 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 20.

Adding to 3161050021100 its reverse (11200501613), we get a palindrome (3172250522713).

The spelling of 3161050021100 in words is "three trillion, one hundred sixty-one billion, fifty million, twenty-one thousand, one hundred".