61052231131 has 4 divisors (see below), whose sum is σ = 61052730264. Its totient is φ = 61051732000.

The previous prime is 61052231129. The next prime is 61052231167. The reversal of 61052231131 is 13113225016.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 61052231131 - 2¹ = 61052231129 is a prime.

It is a super-3 number, since 3×61052231131³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61052231096 and 61052231105.

It is not an unprimeable number, because it can be changed into a prime (61052231101) 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, 72156 + ... + 356806.

It is an arithmetic number, because the mean of its divisors is an integer number (15263182566).

Almost surely, 2^61052231131 is an apocalyptic number.

61052231131 is a deficient number, since it is larger than the sum of its proper divisors (499133).

61052231131 is a wasteful number, since it uses less digits than its factorization.

61052231131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499132.

The product of its (nonzero) digits is 1080, while the sum is 25.

Adding to 61052231131 its reverse (13113225016), we get a palindrome (74165456147).

The spelling of 61052231131 in words is "sixty-one billion, fifty-two million, two hundred thirty-one thousand, one hundred thirty-one".