1211140032 has 28 divisors (see below), whose sum is σ = 3204475176. Its totient is φ = 403713280.

The previous prime is 1211140001. The next prime is 1211140103. The reversal of 1211140032 is 2300411121.

It is a super-2 number, since 2×1211140032² = 2933720354225922048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1211139993 and 1211140020.

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, 3153819 + ... + 3154202.

It is an arithmetic number, because the mean of its divisors is an integer number (114445542).

Almost surely, 2^1211140032 is an apocalyptic number.

1211140032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1211140032 is an abundant number, since it is smaller than the sum of its proper divisors (1993335144).

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

1211140032 is an equidigital number, since it uses as much as digits as its factorization.

1211140032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6308036 (or 6308026 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1211140032 is about 34801.4372117015. The cubic root of 1211140032 is about 1065.9367930542.

Adding to 1211140032 its reverse (2300411121), we get a palindrome (3511551153).

The spelling of 1211140032 in words is "one billion, two hundred eleven million, one hundred forty thousand, thirty-two".