42123100010 has 16 divisors (see below), whose sum is σ = 78436117800. Its totient is φ = 16268231616.

The previous prime is 42123099979. The next prime is 42123100057. The reversal of 42123100010 is 1000132124.

It can be written as a sum of positive squares in 4 ways, for example, as 38010571369 + 4112528641 = 194963^2 + 64129^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72625745 + ... + 72626324.

Almost surely, 2^42123100010 is an apocalyptic number.

42123100010 is a deficient number, since it is larger than the sum of its proper divisors (36313017790).

42123100010 is a wasteful number, since it uses less digits than its factorization.

42123100010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145252105.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 42123100010 its reverse (1000132124), we get a palindrome (43123232134).

The spelling of 42123100010 in words is "forty-two billion, one hundred twenty-three million, one hundred thousand, ten".