1001212023103 has 4 divisors (see below), whose sum is σ = 1053907392760. Its totient is φ = 948516653448.

The previous prime is 1001212023073. The next prime is 1001212023143. The reversal of 1001212023103 is 3013202121001.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1001212023103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001212023143) 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, 26347684800 + ... + 26347684837.

It is an arithmetic number, because the mean of its divisors is an integer number (263476848190).

Almost surely, 2^{1001212023103} is an apocalyptic number.

1001212023103 is a deficient number, since it is larger than the sum of its proper divisors (52695369657).

1001212023103 is an equidigital number, since it uses as much as digits as its factorization.

1001212023103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52695369656.

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

Adding to 1001212023103 its reverse (3013202121001), we get a palindrome (4014414144104).

The spelling of 1001212023103 in words is "one trillion, one billion, two hundred twelve million, twenty-three thousand, one hundred three".