211121011201023 has 288 divisors, whose sum is σ = 413480636190720. Its totient is φ = 105965632080000.

The previous prime is 211121011201013. The next prime is 211121011201027. The reversal of 211121011201023 is 320102110121112.

It is a happy number.

It is not a de Polignac number, because 211121011201023 - 2¹⁸ = 211121010938879 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 211121011200987 and 211121011201005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211121011201027) by changing a digit.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 3131349853 + ... + 3131417273.

It is an arithmetic number, because the mean of its divisors is an integer number (1435696653440).

Almost surely, 2^{211121011201023} is an apocalyptic number.

211121011201023 is a deficient number, since it is larger than the sum of its proper divisors (202359624989697).

211121011201023 is a wasteful number, since it uses less digits than its factorization.

211121011201023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68128 (or 68104 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 211121011201023 its reverse (320102110121112), we get a palindrome (531223121322135).

The spelling of 211121011201023 in words is "two hundred eleven trillion, one hundred twenty-one billion, eleven million, two hundred one thousand, twenty-three".