711272121 has 32 divisors (see below), whose sum is σ = 1098316800. Its totient is φ = 401046336.

The previous prime is 711272117. The next prime is 711272123. The reversal of 711272121 is 121272117.

711272121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 711272121 - 2² = 711272117 is a prime.

It is a super-2 number, since 2×711272121² = 1011816060223677282, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 711272091 and 711272100.

It is not an unprimeable number, because it can be changed into a prime (711272123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 783750 + ... + 784656.

It is an arithmetic number, because the mean of its divisors is an integer number (34322400).

Almost surely, 2^711272121 is an apocalyptic number.

It is an amenable number.

711272121 is a deficient number, since it is larger than the sum of its proper divisors (387044679).

711272121 is a wasteful number, since it uses less digits than its factorization.

711272121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1373.

The product of its digits is 392, while the sum is 24.

The square root of 711272121 is about 26669.6854312157. The cubic root of 711272121 is about 892.6446275206.

The spelling of 711272121 in words is "seven hundred eleven million, two hundred seventy-two thousand, one hundred twenty-one".