420520213401 has 16 divisors (see below), whose sum is σ = 588099581184. Its totient is φ = 266966250624.

The previous prime is 420520213367. The next prime is 420520213403. The reversal of 420520213401 is 104312025024.

It is a de Polignac number, because none of the positive numbers 2^k-420520213401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (420520213403) 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, 40297660 + ... + 40308093.

It is an arithmetic number, because the mean of its divisors is an integer number (36756223824).

Almost surely, 2^420520213401 is an apocalyptic number.

It is an amenable number.

420520213401 is a deficient number, since it is larger than the sum of its proper divisors (167579367783).

420520213401 is a wasteful number, since it uses less digits than its factorization.

420520213401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80605840.

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 420520213401 its reverse (104312025024), we get a palindrome (524832238425).

The spelling of 420520213401 in words is "four hundred twenty billion, five hundred twenty million, two hundred thirteen thousand, four hundred one".