1211043051 has 6 divisors (see below), whose sum is σ = 1749284420. Its totient is φ = 807362028.

The previous prime is 1211043049. The next prime is 1211043079. The reversal of 1211043051 is 1503401121.

It is not a de Polignac number, because 1211043051 - 2¹ = 1211043049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1211043091) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 67280161 + ... + 67280178.

Almost surely, 2^1211043051 is an apocalyptic number.

1211043051 is a deficient number, since it is larger than the sum of its proper divisors (538241369).

1211043051 is a wasteful number, since it uses less digits than its factorization.

1211043051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134560345 (or 134560342 counting only the distinct ones).

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

The square root of 1211043051 is about 34800.0438361793. The cubic root of 1211043051 is about 1065.9083409698.

Adding to 1211043051 its reverse (1503401121), we get a palindrome (2714444172).

The spelling of 1211043051 in words is "one billion, two hundred eleven million, forty-three thousand, fifty-one".