201011121003 has 16 divisors (see below), whose sum is σ = 334148357376. Its totient is φ = 104421361440.

The previous prime is 201011120987. The next prime is 201011121023. The reversal of 201011121003 is 300121110102.

It is not a de Polignac number, because 201011121003 - 2⁴ = 201011120987 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201011121003.

It is not an unprimeable number, because it can be changed into a prime (201011121023) 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, 435088776 + ... + 435089237.

It is an arithmetic number, because the mean of its divisors is an integer number (20884272336).

Almost surely, 2^201011121003 is an apocalyptic number.

201011121003 is a deficient number, since it is larger than the sum of its proper divisors (133137236373).

201011121003 is a wasteful number, since it uses less digits than its factorization.

201011121003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870178034.

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 201011121003 its reverse (300121110102), we get a palindrome (501132231105).

The spelling of 201011121003 in words is "two hundred one billion, eleven million, one hundred twenty-one thousand, three".