4020015503121 has 8 divisors (see below), whose sum is σ = 5361669413664. Its totient is φ = 2679185964000.

The previous prime is 4020015503083. The next prime is 4020015503123. The reversal of 4020015503121 is 1213055100204.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4020015503121 - 2⁶ = 4020015503057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4020015503091 and 4020015503100.

It is not an unprimeable number, because it can be changed into a prime (4020015503123) 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, 206081476 + ... + 206100981.

It is an arithmetic number, because the mean of its divisors is an integer number (670208676708).

Almost surely, 2^{4020015503121} is an apocalyptic number.

It is an amenable number.

4020015503121 is a deficient number, since it is larger than the sum of its proper divisors (1341653910543).

4020015503121 is a wasteful number, since it uses less digits than its factorization.

4020015503121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412185711.

The product of its (nonzero) digits is 1200, while the sum is 24.

The spelling of 4020015503121 in words is "four trillion, twenty billion, fifteen million, five hundred three thousand, one hundred twenty-one".