61323062021 has 16 divisors (see below), whose sum is σ = 68182248960. Its totient is φ = 54770506560.

The previous prime is 61323061981. The next prime is 61323062051. The reversal of 61323062021 is 12026032316.

It is a cyclic number.

It is not a de Polignac number, because 61323062021 - 2⁶ = 61323061957 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 (61323062051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3529271 + ... + 3546603.

It is an arithmetic number, because the mean of its divisors is an integer number (4261390560).

Almost surely, 2^61323062021 is an apocalyptic number.

It is an amenable number.

61323062021 is a deficient number, since it is larger than the sum of its proper divisors (6859186939).

61323062021 is a wasteful number, since it uses less digits than its factorization.

61323062021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26156.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 61323062021 its reverse (12026032316), we get a palindrome (73349094337).

The spelling of 61323062021 in words is "sixty-one billion, three hundred twenty-three million, sixty-two thousand, twenty-one".