1001200023103 has 16 divisors (see below), whose sum is σ = 1168748501760. Its totient is φ = 839909676096.

The previous prime is 1001200023067. The next prime is 1001200023107. The reversal of 1001200023103 is 3013200021001.

It is a cyclic number.

It is not a de Polignac number, because 1001200023103 - 2²¹ = 1001197925951 is a prime.

It is a super-2 number, since 2×1001200023103² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001200023107) 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, 5245926 + ... + 5433427.

It is an arithmetic number, because the mean of its divisors is an integer number (73046781360).

Almost surely, 2^{1001200023103} is an apocalyptic number.

1001200023103 is a deficient number, since it is larger than the sum of its proper divisors (167548478657).

1001200023103 is a wasteful number, since it uses less digits than its factorization.

1001200023103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10679646.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 1001200023103 its reverse (3013200021001), we get a palindrome (4014400044104).

The spelling of 1001200023103 in words is "one trillion, one billion, two hundred million, twenty-three thousand, one hundred three".