1123554201 has 64 divisors (see below), whose sum is σ = 1934585856. Its totient is φ = 563097600.

The previous prime is 1123554143. The next prime is 1123554203. The reversal of 1123554201 is 1024553211.

It is a happy number.

It is not a de Polignac number, because 1123554201 - 2⁷ = 1123554073 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1123554203) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 918076 + ... + 919298.

It is an arithmetic number, because the mean of its divisors is an integer number (30227904).

Almost surely, 2^1123554201 is an apocalyptic number.

1123554201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1123554201 is a deficient number, since it is larger than the sum of its proper divisors (811031655).

1123554201 is a wasteful number, since it uses less digits than its factorization.

1123554201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1382.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1123554201 is about 33519.4600344337. The cubic root of 1123554201 is about 1039.5961822890.

The spelling of 1123554201 in words is "one billion, one hundred twenty-three million, five hundred fifty-four thousand, two hundred one".