60231540721 has 16 divisors (see below), whose sum is σ = 67146612480. Its totient is φ = 53557822080.

The previous prime is 60231540713. The next prime is 60231540751. The reversal of 60231540721 is 12704513206.

60231540721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 60231540721 - 2³ = 60231540713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (60231540751) 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, 821515 + ... + 891823.

It is an arithmetic number, because the mean of its divisors is an integer number (4196663280).

Almost surely, 2^60231540721 is an apocalyptic number.

It is an amenable number.

60231540721 is a deficient number, since it is larger than the sum of its proper divisors (6915071759).

60231540721 is a wasteful number, since it uses less digits than its factorization.

60231540721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72024.

The product of its (nonzero) digits is 10080, while the sum is 31.

The spelling of 60231540721 in words is "sixty billion, two hundred thirty-one million, five hundred forty thousand, seven hundred twenty-one".