1030402120001 has 4 divisors (see below), whose sum is σ = 1032116600004. Its totient is φ = 1028687640000.

The previous prime is 1030402119991. The next prime is 1030402120049. The reversal of 1030402120001 is 1000212040301.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 434300770225 + 596101349776 = 659015^2 + 772076^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1030402120001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1030402120091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 857239100 + ... + 857240301.

It is an arithmetic number, because the mean of its divisors is an integer number (258029150001).

Almost surely, 2^{1030402120001} is an apocalyptic number.

It is an amenable number.

1030402120001 is a deficient number, since it is larger than the sum of its proper divisors (1714480003).

1030402120001 is an equidigital number, since it uses as much as digits as its factorization.

1030402120001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1714480002.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 1030402120001 its reverse (1000212040301), we get a palindrome (2030614160302).

The spelling of 1030402120001 in words is "one trillion, thirty billion, four hundred two million, one hundred twenty thousand, one".