201011033121 has 16 divisors (see below), whose sum is σ = 282132056640. Its totient is φ = 126949248000.

The previous prime is 201011033107. The next prime is 201011033131. The reversal of 201011033121 is 121330110102.

It is a happy number.

It is not a de Polignac number, because 201011033121 - 2¹⁰ = 201011032097 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201011033121.

It is not an unprimeable number, because it can be changed into a prime (201011033131) 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, 1789621 + ... + 1898621.

It is an arithmetic number, because the mean of its divisors is an integer number (17633253540).

Almost surely, 2^201011033121 is an apocalyptic number.

It is an amenable number.

201011033121 is a deficient number, since it is larger than the sum of its proper divisors (81121023519).

201011033121 is a wasteful number, since it uses less digits than its factorization.

201011033121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141376.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 201011033121 its reverse (121330110102), we get a palindrome (322341143223).

It can be divided in two parts, 2010110 and 33121, that added together give a triangular number (2043231 = T₂₀₂₁).

The spelling of 201011033121 in words is "two hundred one billion, eleven million, thirty-three thousand, one hundred twenty-one".