42131421501 has 16 divisors (see below), whose sum is σ = 61488147840. Its totient is φ = 25501993920.

The previous prime is 42131421499. The next prime is 42131421547. The reversal of 42131421501 is 10512413124.

It is not a de Polignac number, because 42131421501 - 2¹ = 42131421499 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42131421571) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8852481 + ... + 8857238.

It is an arithmetic number, because the mean of its divisors is an integer number (3843009240).

Almost surely, 2^42131421501 is an apocalyptic number.

It is an amenable number.

42131421501 is a deficient number, since it is larger than the sum of its proper divisors (19356726339).

42131421501 is a wasteful number, since it uses less digits than its factorization.

42131421501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17709796.

The product of its (nonzero) digits is 960, while the sum is 24.

Adding to 42131421501 its reverse (10512413124), we get a palindrome (52643834625).

The spelling of 42131421501 in words is "forty-two billion, one hundred thirty-one million, four hundred twenty-one thousand, five hundred one".