121231244203 has 8 divisors (see below), whose sum is σ = 133943472288. Its totient is φ = 109139124864.

The previous prime is 121231244171. The next prime is 121231244221. The reversal of 121231244203 is 302442132121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121231244203 - 2⁵ = 121231244171 is a prime.

It is a super-2 number, since 2×121231244203² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121231244243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155026776 + ... + 155027557.

It is an arithmetic number, because the mean of its divisors is an integer number (16742934036).

Almost surely, 2^121231244203 is an apocalyptic number.

121231244203 is a deficient number, since it is larger than the sum of its proper divisors (12712228085).

121231244203 is a wasteful number, since it uses less digits than its factorization.

121231244203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310054373.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 121231244203 its reverse (302442132121), we get a palindrome (423673376324).

The spelling of 121231244203 in words is "one hundred twenty-one billion, two hundred thirty-one million, two hundred forty-four thousand, two hundred three".