1423312202121 has 16 divisors (see below), whose sum is σ = 1957316652288. Its totient is φ = 919491056000.

The previous prime is 1423312202113. The next prime is 1423312202131. The reversal of 1423312202121 is 1212022133241.

It is a cyclic number.

It is not a de Polignac number, because 1423312202121 - 2³ = 1423312202113 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1423312202091 and 1423312202100.

It is not an unprimeable number, because it can be changed into a prime (1423312202131) 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, 49958100 + ... + 49986581.

It is an arithmetic number, because the mean of its divisors is an integer number (122332290768).

Almost surely, 2^{1423312202121} is an apocalyptic number.

It is an amenable number.

1423312202121 is a deficient number, since it is larger than the sum of its proper divisors (534004450167).

1423312202121 is a wasteful number, since it uses less digits than its factorization.

1423312202121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99944832.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 1423312202121 its reverse (1212022133241), we get a palindrome (2635334335362).

The spelling of 1423312202121 in words is "one trillion, four hundred twenty-three billion, three hundred twelve million, two hundred two thousand, one hundred twenty-one".