42021000127 has 8 divisors (see below), whose sum is σ = 42841049040. Its totient is φ = 41201958720.

The previous prime is 42021000103. The next prime is 42021000143. The reversal of 42021000127 is 72100012024.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42021000127 - 2³⁵ = 7661261759 is a prime.

It is a super-2 number, since 2×42021000127² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42021000187) 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, 167374 + ... + 334747.

It is an arithmetic number, because the mean of its divisors is an integer number (5355131130).

Almost surely, 2^42021000127 is an apocalyptic number.

42021000127 is the 167374-th pentagonal number.

42021000127 is a deficient number, since it is larger than the sum of its proper divisors (820048913).

42021000127 is a wasteful number, since it uses less digits than its factorization.

42021000127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503753.

The product of its (nonzero) digits is 224, while the sum is 19.

The spelling of 42021000127 in words is "forty-two billion, twenty-one million, one hundred twenty-seven", and thus it is an aban number.