60420213531 has 12 divisors (see below), whose sum is σ = 90283078080. Its totient is φ = 38891171760.

The previous prime is 60420213509. The next prime is 60420213547. The reversal of 60420213531 is 13531202406.

60420213531 is a `hidden beast` number, since 604 + 2 + 0 + 2 + 1 + 3 + 53 + 1 = 666.

It is not a de Polignac number, because 60420213531 - 2¹⁸ = 60419951387 is a prime.

It is a super-2 number, since 2×60420213531² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 60420213495 and 60420213504.

It is not an unprimeable number, because it can be changed into a prime (60420218531) 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 11 ways as a sum of consecutive naturals, for example, 115747275 + ... + 115747796.

It is an arithmetic number, because the mean of its divisors is an integer number (7523589840).

Almost surely, 2^60420213531 is an apocalyptic number.

60420213531 is a deficient number, since it is larger than the sum of its proper divisors (29862864549).

60420213531 is a wasteful number, since it uses less digits than its factorization.

60420213531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231495106 (or 231495103 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 60420213531 its reverse (13531202406), we get a palindrome (73951415937).

The spelling of 60420213531 in words is "sixty billion, four hundred twenty million, two hundred thirteen thousand, five hundred thirty-one".