61243430601 has 4 divisors (see below), whose sum is σ = 81657907472. Its totient is φ = 40828953732.

The previous prime is 61243430593. The next prime is 61243430617. The reversal of 61243430601 is 10603434216.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 61243430601 - 2³ = 61243430593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61243438601) 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, 10207238431 + ... + 10207238436.

It is an arithmetic number, because the mean of its divisors is an integer number (20414476868).

Almost surely, 2^61243430601 is an apocalyptic number.

It is an amenable number.

61243430601 is a deficient number, since it is larger than the sum of its proper divisors (20414476871).

61243430601 is a wasteful number, since it uses less digits than its factorization.

61243430601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20414476870.

The product of its (nonzero) digits is 10368, while the sum is 30.

Adding to 61243430601 its reverse (10603434216), we get a palindrome (71846864817).

The spelling of 61243430601 in words is "sixty-one billion, two hundred forty-three million, four hundred thirty thousand, six hundred one".