4021302131020 has 48 divisors (see below), whose sum is σ = 8889601966560. Its totient is φ = 1523791954944.

The previous prime is 4021302130927. The next prime is 4021302131027. The reversal of 4021302131020 is 201312031204.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (4021302131027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8461972 + ... + 8924548.

It is an arithmetic number, because the mean of its divisors is an integer number (185200040970).

Almost surely, 2^{4021302131020} is an apocalyptic number.

It is an amenable number.

4021302131020 is an abundant number, since it is smaller than the sum of its proper divisors (4868299835540).

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

4021302131020 is a wasteful number, since it uses less digits than its factorization.

4021302131020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485482 (or 485480 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 4021302131020 its reverse (201312031204), we get a palindrome (4222614162224).

The spelling of 4021302131020 in words is "four trillion, twenty-one billion, three hundred two million, one hundred thirty-one thousand, twenty".