42102023421012 has 24 divisors (see below), whose sum is σ = 98239254780576. Its totient is φ = 14033836359648.

The previous prime is 42102023420987. The next prime is 42102023421019. The reversal of 42102023421012 is 21012432020124.

It is a super-2 number, since 2×42102023421012² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42102023421019) 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, 20405758 + ... + 22374069.

It is an arithmetic number, because the mean of its divisors is an integer number (4093302282524).

Almost surely, 2^{42102023421012} is an apocalyptic number.

It is an amenable number.

42102023421012 is an abundant number, since it is smaller than the sum of its proper divisors (56137231359564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42102023421012 is a wasteful number, since it uses less digits than its factorization.

42102023421012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42861847 (or 42861845 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 42102023421012 its reverse (21012432020124), we get a palindrome (63114455441136).

The spelling of 42102023421012 in words is "forty-two trillion, one hundred two billion, twenty-three million, four hundred twenty-one thousand, twelve".