420151420452143 has 4 divisors (see below), whose sum is σ = 420153414613968. Its totient is φ = 420149426290320.

The previous prime is 420151420452121. The next prime is 420151420452149. The reversal of 420151420452143 is 341254024151024.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 420151420452143 - 2²⁶ = 420151353343279 is a prime.

It is a super-2 number, since 2×420151420452143² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 420151420452097 and 420151420452106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420151420452149) 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, 996764843 + ... + 997186268.

It is an arithmetic number, because the mean of its divisors is an integer number (105038353653492).

Almost surely, 2^{420151420452143} is an apocalyptic number.

420151420452143 is a deficient number, since it is larger than the sum of its proper divisors (1994161825).

420151420452143 is a wasteful number, since it uses less digits than its factorization.

420151420452143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1994161824.

The product of its (nonzero) digits is 153600, while the sum is 38.

The spelling of 420151420452143 in words is "four hundred twenty trillion, one hundred fifty-one billion, four hundred twenty million, four hundred fifty-two thousand, one hundred forty-three".