1201023210011 has 4 divisors (see below), whose sum is σ = 1212914529024. Its totient is φ = 1189131891000.

The previous prime is 1201023209977. The next prime is 1201023210019. The reversal of 1201023210011 is 1100123201021.

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 1201023210011 - 2¹⁸ = 1201022947867 is a prime.

It is a super-2 number, since 2×1201023210011² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201023210019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5945659355 + ... + 5945659556.

It is an arithmetic number, because the mean of its divisors is an integer number (303228632256).

Almost surely, 2^{1201023210011} is an apocalyptic number.

1201023210011 is a deficient number, since it is larger than the sum of its proper divisors (11891319013).

1201023210011 is a wasteful number, since it uses less digits than its factorization.

1201023210011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11891319012.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 1201023210011 its reverse (1100123201021), we get a palindrome (2301146411032).

The spelling of 1201023210011 in words is "one trillion, two hundred one billion, twenty-three million, two hundred ten thousand, eleven".