1232121101403 has 16 divisors (see below), whose sum is σ = 1673869038336. Its totient is φ = 805894433760.

The previous prime is 1232121101383. The next prime is 1232121101461. The reversal of 1232121101403 is 3041011212321.

It is not a de Polignac number, because 1232121101403 - 2⁹ = 1232121100891 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1232121101403.

It is not an unprimeable number, because it can be changed into a prime (1232121101483) 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, 7919226 + ... + 8073312.

It is an arithmetic number, because the mean of its divisors is an integer number (104616814896).

Almost surely, 2^{1232121101403} is an apocalyptic number.

1232121101403 is a deficient number, since it is larger than the sum of its proper divisors (441747936933).

1232121101403 is a wasteful number, since it uses less digits than its factorization.

1232121101403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204434.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 1232121101403 its reverse (3041011212321), we get a palindrome (4273132313724).

The spelling of 1232121101403 in words is "one trillion, two hundred thirty-two billion, one hundred twenty-one million, one hundred one thousand, four hundred three".