1211101325 has 24 divisors (see below), whose sum is σ = 1806640320. Its totient is φ = 786758400.

The previous prime is 1211101261. The next prime is 1211101327. The reversal of 1211101325 is 5231011121.

It is not a de Polignac number, because 1211101325 - 2⁶ = 1211101261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211101327) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 178796 + ... + 185445.

It is an arithmetic number, because the mean of its divisors is an integer number (75276680).

Almost surely, 2^1211101325 is an apocalyptic number.

It is an amenable number.

1211101325 is a deficient number, since it is larger than the sum of its proper divisors (595538995).

1211101325 is a wasteful number, since it uses less digits than its factorization.

1211101325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364277 (or 364272 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 17.

The square root of 1211101325 is about 34800.8810951677. The cubic root of 1211101325 is about 1065.9254374571.

Adding to 1211101325 its reverse (5231011121), we get a palindrome (6442112446).

The spelling of 1211101325 in words is "one billion, two hundred eleven million, one hundred one thousand, three hundred twenty-five".