61711103 has 4 divisors (see below), whose sum is σ = 61894560. Its totient is φ = 61527648.

The previous prime is 61711057. The next prime is 61711121. The reversal of 61711103 is 30111716.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61711103 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 (61711123) 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, 91223 + ... + 91896.

It is an arithmetic number, because the mean of its divisors is an integer number (15473640).

Almost surely, 2^61711103 is an apocalyptic number.

61711103 is a deficient number, since it is larger than the sum of its proper divisors (183457).

61711103 is a wasteful number, since it uses less digits than its factorization.

61711103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183456.

The product of its (nonzero) digits is 126, while the sum is 20.

The square root of 61711103 is about 7855.6414760349. The cubic root of 61711103 is about 395.1734601079.

Adding to 61711103 its reverse (30111716), we get a palindrome (91822819).

It can be divided in two parts, 617 and 11103, that multiplied together give a triangular number (6850551 = T₃₇₀₁).

The spelling of 61711103 in words is "sixty-one million, seven hundred eleven thousand, one hundred three".