1020401121401 has 16 divisors (see below), whose sum is σ = 1079128915200. Its totient is φ = 962179545600.

The previous prime is 1020401121359. The next prime is 1020401121413. The reversal of 1020401121401 is 1041211040201.

It is a cyclic number.

It is not a de Polignac number, because 1020401121401 - 2³⁴ = 1003221252217 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1020401121401.

It is not an unprimeable number, because it can be changed into a prime (1020401121461) 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, 9395831 + ... + 9503811.

It is an arithmetic number, because the mean of its divisors is an integer number (67445557200).

Almost surely, 2^{1020401121401} is an apocalyptic number.

It is an amenable number.

1020401121401 is a deficient number, since it is larger than the sum of its proper divisors (58727793799).

1020401121401 is a wasteful number, since it uses less digits than its factorization.

1020401121401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110320.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1020401121401 its reverse (1041211040201), we get a palindrome (2061612161602).

The spelling of 1020401121401 in words is "one trillion, twenty billion, four hundred one million, one hundred twenty-one thousand, four hundred one".