61031340711 has 48 divisors (see below), whose sum is σ = 97670401920. Its totient is φ = 36412580160.

The previous prime is 61031340709. The next prime is 61031340749. The reversal of 61031340711 is 11704313016.

61031340711 is a `hidden beast` number, since 610 + 3 + 1 + 3 + 40 + 7 + 1 + 1 = 666.

61031340711 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 61031340711 - 2¹ = 61031340709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61031340701) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19293816 + ... + 19296978.

It is an arithmetic number, because the mean of its divisors is an integer number (2034800040).

Almost surely, 2^61031340711 is an apocalyptic number.

61031340711 is a deficient number, since it is larger than the sum of its proper divisors (36639061209).

61031340711 is a wasteful number, since it uses less digits than its factorization.

61031340711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6156 (or 6153 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

Adding to 61031340711 its reverse (11704313016), we get a palindrome (72735653727).

The spelling of 61031340711 in words is "sixty-one billion, thirty-one million, three hundred forty thousand, seven hundred eleven".