1131210054 has 24 divisors (see below), whose sum is σ = 2639490672. Its totient is φ = 348064560.

The previous prime is 1131210037. The next prime is 1131210079. The reversal of 1131210054 is 4500121311.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2416882 + ... + 2417349.

It is an arithmetic number, because the mean of its divisors is an integer number (109978778).

Almost surely, 2^1131210054 is an apocalyptic number.

1131210054 is an abundant number, since it is smaller than the sum of its proper divisors (1508280618).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1131210054 is a wasteful number, since it uses less digits than its factorization.

1131210054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4834252 (or 4834249 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 1131210054 is about 33633.4662798826. The cubic root of 1131210054 is about 1041.9520948156.

Adding to 1131210054 its reverse (4500121311), we get a palindrome (5631331365).

The spelling of 1131210054 in words is "one billion, one hundred thirty-one million, two hundred ten thousand, fifty-four".