1051161605103 has 4 divisors (see below), whose sum is σ = 1401548806808. Its totient is φ = 700774403400.

The previous prime is 1051161605101. The next prime is 1051161605111. The reversal of 1051161605103 is 3015061611501.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1051161605103 - 2¹ = 1051161605101 is a prime.

It is a super-2 number, since 2×1051161605103² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1051161605101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175193600848 + ... + 175193600853.

It is an arithmetic number, because the mean of its divisors is an integer number (350387201702).

Almost surely, 2^{1051161605103} is an apocalyptic number.

1051161605103 is a deficient number, since it is larger than the sum of its proper divisors (350387201705).

1051161605103 is an equidigital number, since it uses as much as digits as its factorization.

1051161605103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350387201704.

The product of its (nonzero) digits is 2700, while the sum is 30.

The spelling of 1051161605103 in words is "one trillion, fifty-one billion, one hundred sixty-one million, six hundred five thousand, one hundred three".