7615121103112 has 8 divisors (see below), whose sum is σ = 14278352068350. Its totient is φ = 3807560551552.

The previous prime is 7615121103097. The next prime is 7615121103221. The reversal of 7615121103112 is 2113011215167.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 7481789501796 + 133331601316 = 2735286^2 + 365146^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 475945068937 + ... + 475945068952.

Almost surely, 2^{7615121103112} is an apocalyptic number.

It is an amenable number.

7615121103112 is a deficient number, since it is larger than the sum of its proper divisors (6663230965238).

7615121103112 is a wasteful number, since it uses less digits than its factorization.

7615121103112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 951890137895 (or 951890137891 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 31.

Adding to 7615121103112 its reverse (2113011215167), we get a palindrome (9728132318279).

The spelling of 7615121103112 in words is "seven trillion, six hundred fifteen billion, one hundred twenty-one million, one hundred three thousand, one hundred twelve".