420101181 has 64 divisors (see below), whose sum is σ = 670924800. Its totient is φ = 259329600.

The previous prime is 420101159. The next prime is 420101197. The reversal of 420101181 is 181101024.

It is not a de Polignac number, because 420101181 - 2¹³ = 420092989 is a prime.

It is a super-2 number, since 2×420101181² = 352970004555189522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420101111) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2320911 + ... + 2321091.

It is an arithmetic number, because the mean of its divisors is an integer number (10483200).

Almost surely, 2^420101181 is an apocalyptic number.

It is an amenable number.

420101181 is a deficient number, since it is larger than the sum of its proper divisors (250823619).

420101181 is a wasteful number, since it uses less digits than its factorization.

420101181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327 (or 321 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

The square root of 420101181 is about 20496.3699468955. The cubic root of 420101181 is about 748.9473713217.

The spelling of 420101181 in words is "four hundred twenty million, one hundred one thousand, one hundred eighty-one".