1101204131 has 4 divisors (see below), whose sum is σ = 1101392112. Its totient is φ = 1101016152.

The previous prime is 1101204127. The next prime is 1101204149. The reversal of 1101204131 is 1314021011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1314021011 = 2269 ⋅579119.

It is a cyclic number.

It is not a de Polignac number, because 1101204131 - 2² = 1101204127 is a prime.

It is a super-2 number, since 2×1101204131² = 2425301076262930322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1101204331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84911 + ... + 97016.

It is an arithmetic number, because the mean of its divisors is an integer number (275348028).

Almost surely, 2^1101204131 is an apocalyptic number.

1101204131 is a deficient number, since it is larger than the sum of its proper divisors (187981).

1101204131 is an equidigital number, since it uses as much as digits as its factorization.

1101204131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187980.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 1101204131 is about 33184.3958962643. The cubic root of 1101204131 is about 1032.6566449131.

Adding to 1101204131 its reverse (1314021011), we get a palindrome (2415225142).

The spelling of 1101204131 in words is "one billion, one hundred one million, two hundred four thousand, one hundred thirty-one".