231000211121303 has 16 divisors (see below), whose sum is σ = 251565791873760. Its totient is φ = 210834128930304.

The previous prime is 231000211121287. The next prime is 231000211121353. The reversal of 231000211121303 is 303121112000132.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 231000211121303 - 2⁴ = 231000211121287 is a prime.

It is a super-2 number, since 2×231000211121303² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231000211121353) 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, 389384675 + ... + 389977467.

It is an arithmetic number, because the mean of its divisors is an integer number (15722861992110).

Almost surely, 2^{231000211121303} is an apocalyptic number.

231000211121303 is a deficient number, since it is larger than the sum of its proper divisors (20565580752457).

231000211121303 is a wasteful number, since it uses less digits than its factorization.

231000211121303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929698.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 231000211121303 its reverse (303121112000132), we get a palindrome (534121323121435).

The spelling of 231000211121303 in words is "two hundred thirty-one trillion, two hundred eleven million, one hundred twenty-one thousand, three hundred three".