42145345031 has 8 divisors (see below), whose sum is σ = 44730992880. Its totient is φ = 39571531648.

The previous prime is 42145345001. The next prime is 42145345057. The reversal of 42145345031 is 13054354124.

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 42145345031 - 2¹⁸ = 42145082887 is a prime.

It is a super-2 number, since 2×42145345031² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42145345001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2951276 + ... + 2965521.

It is an arithmetic number, because the mean of its divisors is an integer number (5591374110).

Almost surely, 2^42145345031 is an apocalyptic number.

42145345031 is a deficient number, since it is larger than the sum of its proper divisors (2585647849).

42145345031 is a wasteful number, since it uses less digits than its factorization.

42145345031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5917233.

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 42145345031 its reverse (13054354124), we get a palindrome (55199699155).

The spelling of 42145345031 in words is "forty-two billion, one hundred forty-five million, three hundred forty-five thousand, thirty-one".