101203111001 has 4 divisors (see below), whose sum is σ = 103671479604. Its totient is φ = 98734742400.

The previous prime is 101203110929. The next prime is 101203111027. The reversal of 101203111001 is 100111302101.

It is a happy number.

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 47054286400 + 54148824601 = 216920^2 + 232699^2 .

It is a cyclic number.

It is not a de Polignac number, because 101203111001 - 2³⁴ = 84023241817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101203111091) 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, 1234184240 + ... + 1234184321.

It is an arithmetic number, because the mean of its divisors is an integer number (25917869901).

Almost surely, 2^101203111001 is an apocalyptic number.

It is an amenable number.

101203111001 is a deficient number, since it is larger than the sum of its proper divisors (2468368603).

101203111001 is an equidigital number, since it uses as much as digits as its factorization.

101203111001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2468368602.

The product of its (nonzero) digits is 6, while the sum is 11.

Adding to 101203111001 its reverse (100111302101), we get a palindrome (201314413102).

The spelling of 101203111001 in words is "one hundred one billion, two hundred three million, one hundred eleven thousand, one".