61316351023541 has 4 divisors (see below), whose sum is σ = 63294297830784. Its totient is φ = 59338404216300.

The previous prime is 61316351023523. The next prime is 61316351023589. The reversal of 61316351023541 is 14532015361316.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 61316351023541 - 2¹⁰ = 61316351022517 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 (61316351073541) 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, 988973403575 + ... + 988973403636.

It is an arithmetic number, because the mean of its divisors is an integer number (15823574457696).

Almost surely, 2^{61316351023541} is an apocalyptic number.

It is an amenable number.

61316351023541 is a deficient number, since it is larger than the sum of its proper divisors (1977946807243).

61316351023541 is a wasteful number, since it uses less digits than its factorization.

61316351023541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1977946807242.

The product of its (nonzero) digits is 194400, while the sum is 41.

Adding to 61316351023541 its reverse (14532015361316), we get a palindrome (75848366384857).

The spelling of 61316351023541 in words is "sixty-one trillion, three hundred sixteen billion, three hundred fifty-one million, twenty-three thousand, five hundred forty-one".