1131214420 has 48 divisors (see below), whose sum is σ = 2717406720. Its totient is φ = 387489024.

The previous prime is 1131214417. The next prime is 1131214421. The reversal of 1131214420 is 244121311.

It is a super-3 number, since 3×1131214420³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131214421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182736 + ... + 188824.

It is an arithmetic number, because the mean of its divisors is an integer number (56612640).

Almost surely, 2^1131214420 is an apocalyptic number.

1131214420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1131214420 is an abundant number, since it is smaller than the sum of its proper divisors (1586192300).

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

1131214420 is a wasteful number, since it uses less digits than its factorization.

1131214420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7432 (or 7430 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1131214420 is about 33633.5311854108. The cubic root of 1131214420 is about 1041.9534353144.

Adding to 1131214420 its reverse (244121311), we get a palindrome (1375335731).

The spelling of 1131214420 in words is "one billion, one hundred thirty-one million, two hundred fourteen thousand, four hundred twenty".