420100742312 has 32 divisors (see below), whose sum is σ = 797549927400. Its totient is φ = 207436652544.

The previous prime is 420100742309. The next prime is 420100742317. The reversal of 420100742312 is 213247001024.

It can be written as a sum of positive squares in 4 ways, for example, as 172469106436 + 247631635876 = 415294^2 + 497626^2 .

It is not an unprimeable number, because it can be changed into a prime (420100742317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 781487 + ... + 1204542.

Almost surely, 2^420100742312 is an apocalyptic number.

It is an amenable number.

420100742312 is a deficient number, since it is larger than the sum of its proper divisors (377449185088).

420100742312 is a wasteful number, since it uses less digits than its factorization.

420100742312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1986365 (or 1986361 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

Adding to 420100742312 its reverse (213247001024), we get a palindrome (633347743336).

The spelling of 420100742312 in words is "four hundred twenty billion, one hundred million, seven hundred forty-two thousand, three hundred twelve".