201120121223031 has 16 divisors (see below), whose sum is σ = 268576321950720. Its totient is φ = 133872161903040.

The previous prime is 201120121223029. The next prime is 201120121223069. The reversal of 201120121223031 is 130322121021102.

It is not a de Polignac number, because 201120121223031 - 2¹ = 201120121223029 is a prime.

It is a super-2 number, since 2×201120121223031² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201120121222989 and 201120121223007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201120121223731) 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, 15165255 + ... + 25144088.

It is an arithmetic number, because the mean of its divisors is an integer number (16786020121920).

Almost surely, 2^{201120121223031} is an apocalyptic number.

201120121223031 is a deficient number, since it is larger than the sum of its proper divisors (67456200727689).

201120121223031 is a wasteful number, since it uses less digits than its factorization.

201120121223031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40311926.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 201120121223031 its reverse (130322121021102), we get a palindrome (331442242244133).

The spelling of 201120121223031 in words is "two hundred one trillion, one hundred twenty billion, one hundred twenty-one million, two hundred twenty-three thousand, thirty-one".