11203421389 has 2 divisors, whose sum is σ = 11203421390. Its totient is φ = 11203421388.

The previous prime is 11203421329. The next prime is 11203421429. The reversal of 11203421389 is 98312430211.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5661810025 + 5541611364 = 75245^2 + 74442^2 .

It is a cyclic number.

It is not a de Polignac number, because 11203421389 - 2²¹ = 11201324237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11203421329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5601710694 + 5601710695.

It is an arithmetic number, because the mean of its divisors is an integer number (5601710695).

Almost surely, 2^11203421389 is an apocalyptic number.

It is an amenable number.

11203421389 is a deficient number, since it is larger than the sum of its proper divisors (1).

11203421389 is an equidigital number, since it uses as much as digits as its factorization.

11203421389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 34.

The spelling of 11203421389 in words is "eleven billion, two hundred three million, four hundred twenty-one thousand, three hundred eighty-nine".