203121132020411 has 12 divisors (see below), whose sum is σ = 223315179786216. Its totient is φ = 184614383891520.

The previous prime is 203121132020399. The next prime is 203121132020501. The reversal of 203121132020411 is 114020231121302.

It is not a de Polignac number, because 203121132020411 - 2⁶ = 203121132020347 is a prime.

It is a super-3 number, since 3×203121132020411³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203121132020111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 186685646 + ... + 187770531.

It is an arithmetic number, because the mean of its divisors is an integer number (18609598315518).

Almost surely, 2^{203121132020411} is an apocalyptic number.

203121132020411 is a deficient number, since it is larger than the sum of its proper divisors (20194047765805).

203121132020411 is a wasteful number, since it uses less digits than its factorization.

203121132020411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374460682 (or 374460671 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 203121132020411 its reverse (114020231121302), we get a palindrome (317141363141713).

The spelling of 203121132020411 in words is "two hundred three trillion, one hundred twenty-one billion, one hundred thirty-two million, twenty thousand, four hundred eleven".