420700108029 has 4 divisors (see below), whose sum is σ = 560933477376. Its totient is φ = 280466738684.

The previous prime is 420700108019. The next prime is 420700108051. The reversal of 420700108029 is 920801007024.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 420700108029 - 2¹³ = 420700099837 is a prime.

It is a super-2 number, since 2×420700108029² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420700108019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70116684669 + ... + 70116684674.

It is an arithmetic number, because the mean of its divisors is an integer number (140233369344).

Almost surely, 2^420700108029 is an apocalyptic number.

It is an amenable number.

420700108029 is a deficient number, since it is larger than the sum of its proper divisors (140233369347).

420700108029 is a wasteful number, since it uses less digits than its factorization.

420700108029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140233369346.

The product of its (nonzero) digits is 8064, while the sum is 33.

The spelling of 420700108029 in words is "four hundred twenty billion, seven hundred million, one hundred eight thousand, twenty-nine".