1201023711 has 12 divisors (see below), whose sum is σ = 1736390760. Its totient is φ = 799953840.

The previous prime is 1201023697. The next prime is 1201023713. The reversal of 1201023711 is 1173201021.

It is a happy number.

It is not a de Polignac number, because 1201023711 - 2⁹ = 1201023199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201023713) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50185 + ... + 70146.

It is an arithmetic number, because the mean of its divisors is an integer number (144699230).

Almost surely, 2^1201023711 is an apocalyptic number.

1201023711 is a deficient number, since it is larger than the sum of its proper divisors (535367049).

1201023711 is a wasteful number, since it uses less digits than its factorization.

1201023711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121446 (or 121443 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 18.

The square root of 1201023711 is about 34655.7889969338. The cubic root of 1201023711 is about 1062.9606653121.

Adding to 1201023711 its reverse (1173201021), we get a palindrome (2374224732).

It can be divided in two parts, 12010 and 23711, that added together give a square (35721 = 189²).

The spelling of 1201023711 in words is "one billion, two hundred one million, twenty-three thousand, seven hundred eleven".