3101887721396 has 24 divisors (see below), whose sum is σ = 5434047911040. Its totient is φ = 1549302847200.

The previous prime is 3101887721377. The next prime is 3101887721399. The reversal of 3101887721396 is 6931277881013.

It is a happy number.

It is a super-2 number, since 2×3101887721396² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3101887721399) 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, 74761385 + ... + 74802863.

It is an arithmetic number, because the mean of its divisors is an integer number (226418662960).

Almost surely, 2^{3101887721396} is an apocalyptic number.

It is an amenable number.

3101887721396 is a deficient number, since it is larger than the sum of its proper divisors (2332160189644).

3101887721396 is a wasteful number, since it uses less digits than its factorization.

3101887721396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60815 (or 60813 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 56.

It can be divided in two parts, 3101887 and 721396, that added together give a palindrome (3823283).

The spelling of 3101887721396 in words is "three trillion, one hundred one billion, eight hundred eighty-seven million, seven hundred twenty-one thousand, three hundred ninety-six".