1203231102001 has 4 divisors (see below), whose sum is σ = 1203300601972. Its totient is φ = 1203161602032.

The previous prime is 1203231101911. The next prime is 1203231102037. The reversal of 1203231102001 is 1002011323021.

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 707508088225 + 495723013776 = 841135^2 + 704076^2 .

It is a cyclic number.

It is not a de Polignac number, because 1203231102001 - 2²³ = 1203222713393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1203231102061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34724010 + ... + 34758643.

It is an arithmetic number, because the mean of its divisors is an integer number (300825150493).

Almost surely, 2^{1203231102001} is an apocalyptic number.

It is an amenable number.

1203231102001 is a deficient number, since it is larger than the sum of its proper divisors (69499971).

1203231102001 is an equidigital number, since it uses as much as digits as its factorization.

1203231102001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69499970.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1203231102001 its reverse (1002011323021), we get a palindrome (2205242425022).

The spelling of 1203231102001 in words is "one trillion, two hundred three billion, two hundred thirty-one million, one hundred two thousand, one".