4020312030042 has 64 divisors (see below), whose sum is σ = 10029206605824. Its totient is φ = 1043764760640.

The previous prime is 4020312030011. The next prime is 4020312030043. The reversal of 4020312030042 is 2400302130204.

It is a super-2 number, since 2×4020312030042² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (4020312030043) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 943698 + ... + 2988509.

It is an arithmetic number, because the mean of its divisors is an integer number (156706353216).

Almost surely, 2^{4020312030042} is an apocalyptic number.

4020312030042 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

4020312030042 is an abundant number, since it is smaller than the sum of its proper divisors (6008894575782).

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

4020312030042 is a wasteful number, since it uses less digits than its factorization.

4020312030042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3934443.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 4020312030042 its reverse (2400302130204), we get a palindrome (6420614160246).

The spelling of 4020312030042 in words is "four trillion, twenty billion, three hundred twelve million, thirty thousand, forty-two".