61302030220131 has 32 divisors (see below), whose sum is σ = 84874253967360. Its totient is φ = 39309811532544.

The previous prime is 61302030220099. The next prime is 61302030220147. The reversal of 61302030220131 is 13102203020316.

It is not a de Polignac number, because 61302030220131 - 2⁵ = 61302030220099 is a prime.

It is a super-2 number, since 2×61302030220131² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61302030220531) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27482736 + ... + 29629458.

It is an arithmetic number, because the mean of its divisors is an integer number (2652320436480).

Almost surely, 2^{61302030220131} is an apocalyptic number.

61302030220131 is a deficient number, since it is larger than the sum of its proper divisors (23572223747229).

61302030220131 is a wasteful number, since it uses less digits than its factorization.

61302030220131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2147995.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 61302030220131 its reverse (13102203020316), we get a palindrome (74404233240447).

The spelling of 61302030220131 in words is "sixty-one trillion, three hundred two billion, thirty million, two hundred twenty thousand, one hundred thirty-one".