1121161615103 has 16 divisors (see below), whose sum is σ = 1187252699136. Its totient is φ = 1057147873920.

The previous prime is 1121161615081. The next prime is 1121161615109. The reversal of 1121161615103 is 3015161611211.

It is not a de Polignac number, because 1121161615103 - 2⁸ = 1121161614847 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 (1121161615109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1400426 + ... + 2050247.

It is an arithmetic number, because the mean of its divisors is an integer number (74203293696).

Almost surely, 2^{1121161615103} is an apocalyptic number.

1121161615103 is a deficient number, since it is larger than the sum of its proper divisors (66091084033).

1121161615103 is a wasteful number, since it uses less digits than its factorization.

1121161615103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3450974.

The product of its (nonzero) digits is 1080, while the sum is 29.

The spelling of 1121161615103 in words is "one trillion, one hundred twenty-one billion, one hundred sixty-one million, six hundred fifteen thousand, one hundred three".