1131420212 has 12 divisors (see below), whose sum is σ = 2132292036. Its totient is φ = 522193920.

The previous prime is 1131420197. The next prime is 1131420293. The reversal of 1131420212 is 2120241311.

It can be written as a sum of positive squares in 2 ways, for example, as 147719716 + 983700496 = 12154^2 + 31364^2 .

It is a super-2 number, since 2×1131420212² = 2560223392244249888, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10878989 + ... + 10879092.

It is an arithmetic number, because the mean of its divisors is an integer number (177691003).

Almost surely, 2^1131420212 is an apocalyptic number.

It is an amenable number.

1131420212 is a deficient number, since it is larger than the sum of its proper divisors (1000871824).

1131420212 is a wasteful number, since it uses less digits than its factorization.

1131420212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21758098 (or 21758096 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1131420212 is about 33636.5903741744. The cubic root of 1131420212 is about 1042.0166159917.

Adding to 1131420212 its reverse (2120241311), we get a palindrome (3251661523).

The spelling of 1131420212 in words is "one billion, one hundred thirty-one million, four hundred twenty thousand, two hundred twelve".