11203422549 has 24 divisors (see below), whose sum is σ = 16493089536. Its totient is φ = 6759456000.

The previous prime is 11203422491. The next prime is 11203422551. The reversal of 11203422549 is 94522430211.

It is not a de Polignac number, because 11203422549 - 2²¹ = 11201325397 is a prime.

It is a super-2 number, since 2×11203422549² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11203422049) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11749 + ... + 150149.

It is an arithmetic number, because the mean of its divisors is an integer number (687212064).

Almost surely, 2^11203422549 is an apocalyptic number.

It is an amenable number.

11203422549 is a deficient number, since it is larger than the sum of its proper divisors (5289666987).

11203422549 is a wasteful number, since it uses less digits than its factorization.

11203422549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138649 (or 138638 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The spelling of 11203422549 in words is "eleven billion, two hundred three million, four hundred twenty-two thousand, five hundred forty-nine".