61313103 has 24 divisors (see below), whose sum is σ = 90878112. Its totient is φ = 39818688.

The previous prime is 61313099. The next prime is 61313123. The reversal of 61313103 is 30131316.

It is not a de Polignac number, because 61313103 - 2² = 61313099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61313123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 82150 + ... + 82892.

It is an arithmetic number, because the mean of its divisors is an integer number (3786588).

Almost surely, 2^61313103 is an apocalyptic number.

61313103 is a deficient number, since it is larger than the sum of its proper divisors (29565009).

61313103 is a wasteful number, since it uses less digits than its factorization.

61313103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 975 (or 972 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 61313103 is about 7830.2683862049. The cubic root of 61313103 is about 394.3220823979.

Adding to 61313103 its reverse (30131316), we get a palindrome (91444419).

It can be divided in two parts, 61313 and 103, that added together give a palindrome (61416).

The spelling of 61313103 in words is "sixty-one million, three hundred thirteen thousand, one hundred three".