1230101323311 has 24 divisors (see below), whose sum is σ = 1910432789040. Its totient is φ = 701986424832.

The previous prime is 1230101323303. The next prime is 1230101323331. The reversal of 1230101323311 is 1133231010321.

It is a happy number.

It is not a de Polignac number, because 1230101323311 - 2³ = 1230101323303 is a prime.

It is a super-2 number, since 2×1230101323311² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230101323301) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5415826 + ... + 5638383.

It is an arithmetic number, because the mean of its divisors is an integer number (79601366210).

Almost surely, 2^{1230101323311} is an apocalyptic number.

1230101323311 is a deficient number, since it is larger than the sum of its proper divisors (680331465729).

1230101323311 is a wasteful number, since it uses less digits than its factorization.

1230101323311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11054983 (or 11054976 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 1230101323311 its reverse (1133231010321), we get a palindrome (2363332333632).

The spelling of 1230101323311 in words is "one trillion, two hundred thirty billion, one hundred one million, three hundred twenty-three thousand, three hundred eleven".