1206425011 has 4 divisors (see below), whose sum is σ = 1316100024. Its totient is φ = 1096750000.

The previous prime is 1206424991. The next prime is 1206425021. The reversal of 1206425011 is 1105246021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1206425011 - 2²³ = 1198036403 is a prime.

It is a super-2 number, since 2×1206425011² = 2910922614332700242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1206425021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54837490 + ... + 54837511.

It is an arithmetic number, because the mean of its divisors is an integer number (329025006).

Almost surely, 2^1206425011 is an apocalyptic number.

1206425011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1206425011 is a deficient number, since it is larger than the sum of its proper divisors (109675013).

1206425011 is a wasteful number, since it uses less digits than its factorization.

1206425011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109675012.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 1206425011 is about 34733.6293957312. The cubic root of 1206425011 is about 1064.5517479980.

The spelling of 1206425011 in words is "one billion, two hundred six million, four hundred twenty-five thousand, eleven".