4020123342004 has 48 divisors (see below), whose sum is σ = 8876855102976. Its totient is φ = 1547410946400.

The previous prime is 4020123341987. The next prime is 4020123342073. The reversal of 4020123342004 is 4002433210204.

It is a happy number.

It is a super-2 number, since 2×4020123342004² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4020123342004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78603042 + ... + 78654169.

It is an arithmetic number, because the mean of its divisors is an integer number (184934481312).

Almost surely, 2^{4020123342004} is an apocalyptic number.

4020123342004 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

4020123342004 is an abundant number, since it is smaller than the sum of its proper divisors (4856731760972).

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

4020123342004 is a wasteful number, since it uses less digits than its factorization.

4020123342004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157257316 (or 157257314 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 4020123342004 its reverse (4002433210204), we get a palindrome (8022556552208).

The spelling of 4020123342004 in words is "four trillion, twenty billion, one hundred twenty-three million, three hundred forty-two thousand, four".