1211140141 has 8 divisors (see below), whose sum is σ = 1285220160. Its totient is φ = 1138845312.

The previous prime is 1211140111. The next prime is 1211140159. The reversal of 1211140141 is 1410411121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1211140141 - 2⁵ = 1211140109 is a prime.

It is a super-2 number, since 2×1211140141² = 2933720882282999762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211140111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 444900 + ... + 447613.

It is an arithmetic number, because the mean of its divisors is an integer number (160652520).

Almost surely, 2^1211140141 is an apocalyptic number.

It is an amenable number.

1211140141 is a deficient number, since it is larger than the sum of its proper divisors (74080019).

1211140141 is an equidigital number, since it uses as much as digits as its factorization.

1211140141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 892595.

The product of its (nonzero) digits is 32, while the sum is 16.

The square root of 1211140141 is about 34801.4387777287. The cubic root of 1211140141 is about 1065.9368250316.

Adding to 1211140141 its reverse (1410411121), we get a palindrome (2621551262).

The spelling of 1211140141 in words is "one billion, two hundred eleven million, one hundred forty thousand, one hundred forty-one".