1121101020231 has 16 divisors (see below), whose sum is σ = 1505262236544. Its totient is φ = 742184753184.

The previous prime is 1121101020227. The next prime is 1121101020257. The reversal of 1121101020231 is 1320201011211.

It is not a de Polignac number, because 1121101020231 - 2² = 1121101020227 is a prime.

It is a super-2 number, since 2×1121101020231² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1121101020231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121101020931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1504441 + ... + 2122626.

It is an arithmetic number, because the mean of its divisors is an integer number (94078889784).

Almost surely, 2^{1121101020231} is an apocalyptic number.

1121101020231 is a deficient number, since it is larger than the sum of its proper divisors (384161216313).

1121101020231 is a wasteful number, since it uses less digits than its factorization.

1121101020231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3627790.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 1121101020231 its reverse (1320201011211), we get a palindrome (2441302031442).

The spelling of 1121101020231 in words is "one trillion, one hundred twenty-one billion, one hundred one million, twenty thousand, two hundred thirty-one".