231022121003 has 4 divisors (see below), whose sum is σ = 231024824520. Its totient is φ = 231019417488.

The previous prime is 231022120969. The next prime is 231022121021. The reversal of 231022121003 is 300121220132.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 231022121003 - 2¹⁴ = 231022104619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231022121093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1219250 + ... + 1395927.

It is an arithmetic number, because the mean of its divisors is an integer number (57756206130).

Almost surely, 2^231022121003 is an apocalyptic number.

231022121003 is a deficient number, since it is larger than the sum of its proper divisors (2703517).

231022121003 is an equidigital number, since it uses as much as digits as its factorization.

231022121003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2703516.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 231022121003 its reverse (300121220132), we get a palindrome (531143341135).

The spelling of 231022121003 in words is "two hundred thirty-one billion, twenty-two million, one hundred twenty-one thousand, three".