61443021063023 has 4 divisors (see below), whose sum is σ = 61639324645008. Its totient is φ = 61246717481040.

The previous prime is 61443021063019. The next prime is 61443021063031. The reversal of 61443021063023 is 32036012034416.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61443021063023 - 2² = 61443021063019 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 (61443021063013) 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, 98151790523 + ... + 98151791148.

It is an arithmetic number, because the mean of its divisors is an integer number (15409831161252).

Almost surely, 2^{61443021063023} is an apocalyptic number.

61443021063023 is a deficient number, since it is larger than the sum of its proper divisors (196303581985).

61443021063023 is a wasteful number, since it uses less digits than its factorization.

61443021063023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196303581984.

The product of its (nonzero) digits is 62208, while the sum is 35.

Adding to 61443021063023 its reverse (32036012034416), we get a palindrome (93479033097439).

The spelling of 61443021063023 in words is "sixty-one trillion, four hundred forty-three billion, twenty-one million, sixty-three thousand, twenty-three".