42102103031 has 8 divisors (see below), whose sum is σ = 42149631744. Its totient is φ = 42054599800.

The previous prime is 42102103013. The next prime is 42102103033. The reversal of 42102103031 is 13030120124.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42102103031 is a prime.

It is a super-2 number, since 2×42102103031² (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 (42102103033) 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, 7247330 + ... + 7253136.

It is an arithmetic number, because the mean of its divisors is an integer number (5268703968).

Almost surely, 2^42102103031 is an apocalyptic number.

42102103031 is a deficient number, since it is larger than the sum of its proper divisors (47528713).

42102103031 is a wasteful number, since it uses less digits than its factorization.

42102103031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12741.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 42102103031 its reverse (13030120124), we get a palindrome (55132223155).

The spelling of 42102103031 in words is "forty-two billion, one hundred two million, one hundred three thousand, thirty-one".