1211013001 has 8 divisors (see below), whose sum is σ = 1366660800. Its totient is φ = 1062957840.

The previous prime is 1211012821. The next prime is 1211013031. The reversal of 1211013001 is 1003101121.

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 1211013001 - 2²⁷ = 1076795273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1211013031) 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, 1897821 + ... + 1898458.

It is an arithmetic number, because the mean of its divisors is an integer number (170832600).

Almost surely, 2^1211013001 is an apocalyptic number.

1211013001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1211013001 is a deficient number, since it is larger than the sum of its proper divisors (155647799).

1211013001 is a wasteful number, since it uses less digits than its factorization.

1211013001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3796319.

The product of its (nonzero) digits is 6, while the sum is 10.

The square root of 1211013001 is about 34799.6120811712. The cubic root of 1211013001 is about 1065.8995246549.

Adding to 1211013001 its reverse (1003101121), we get a palindrome (2214114122).

The spelling of 1211013001 in words is "one billion, two hundred eleven million, thirteen thousand, one".