1101012213231 has 24 divisors (see below), whose sum is σ = 1818050201760. Its totient is φ = 628974602496.

The previous prime is 1101012213137. The next prime is 1101012213233. The reversal of 1101012213231 is 1323122101011.

1101012213231 is a `hidden beast` number, since 110 + 10 + 1 + 221 + 323 + 1 = 666.

It is not a de Polignac number, because 1101012213231 - 2⁹ = 1101012212719 is a prime.

It is a super-2 number, since 2×1101012213231² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101012213233) 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, 2205646 + ... + 2658363.

It is an arithmetic number, because the mean of its divisors is an integer number (75752091740).

Almost surely, 2^{1101012213231} is an apocalyptic number.

1101012213231 is a deficient number, since it is larger than the sum of its proper divisors (717037988529).

1101012213231 is a wasteful number, since it uses less digits than its factorization.

1101012213231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4867615 (or 4867612 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 1101012213231 its reverse (1323122101011), we get a palindrome (2424134314242).

The spelling of 1101012213231 in words is "one trillion, one hundred one billion, twelve million, two hundred thirteen thousand, two hundred thirty-one".