61613202132031 has 16 divisors (see below), whose sum is σ = 67393768366080. Its totient is φ = 55862547049120.

The previous prime is 61613202132019. The next prime is 61613202132049. The reversal of 61613202132031 is 13023120231616.

It is a cyclic number.

It is not a de Polignac number, because 61613202132031 - 2²⁷ = 61613067914303 is a prime.

It is a super-2 number, since 2×61613202132031² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61613202131984 and 61613202132002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61613202132011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74508585 + ... + 75330973.

It is an arithmetic number, because the mean of its divisors is an integer number (4212110522880).

Almost surely, 2^{61613202132031} is an apocalyptic number.

61613202132031 is a deficient number, since it is larger than the sum of its proper divisors (5780566234049).

61613202132031 is a wasteful number, since it uses less digits than its factorization.

61613202132031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840566.

The product of its (nonzero) digits is 7776, while the sum is 31.

Adding to 61613202132031 its reverse (13023120231616), we get a palindrome (74636322363647).

The spelling of 61613202132031 in words is "sixty-one trillion, six hundred thirteen billion, two hundred two million, one hundred thirty-two thousand, thirty-one".