1211023101332 has 12 divisors (see below), whose sum is σ = 2311953193536. Its totient is φ = 550465046040.

The previous prime is 1211023101331. The next prime is 1211023101359. The reversal of 1211023101332 is 2331013201121.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211023101331) 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, 13761626108 + ... + 13761626195.

It is an arithmetic number, because the mean of its divisors is an integer number (192662766128).

Almost surely, 2^{1211023101332} is an apocalyptic number.

It is an amenable number.

1211023101332 is a deficient number, since it is larger than the sum of its proper divisors (1100930092204).

1211023101332 is a wasteful number, since it uses less digits than its factorization.

1211023101332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27523252318 (or 27523252316 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1211023101332 its reverse (2331013201121), we get a palindrome (3542036302453).

The spelling of 1211023101332 in words is "one trillion, two hundred eleven billion, twenty-three million, one hundred one thousand, three hundred thirty-two".