1011211033231 has 8 divisors (see below), whose sum is σ = 1205916263424. Its totient is φ = 829067430840.

The previous prime is 1011211033211. The next prime is 1011211033237. The reversal of 1011211033231 is 1323301121101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1011211033231 - 2⁵ = 1011211033199 is a prime.

It is a super-2 number, since 2×1011211033231² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1011211033199 and 1011211033208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011211033237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3140406775 + ... + 3140407096.

It is an arithmetic number, because the mean of its divisors is an integer number (150739532928).

Almost surely, 2^{1011211033231} is an apocalyptic number.

1011211033231 is a deficient number, since it is larger than the sum of its proper divisors (194705230193).

1011211033231 is an equidigital number, since it uses as much as digits as its factorization.

1011211033231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6280813901.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 1011211033231 its reverse (1323301121101), we get a palindrome (2334512154332).

The spelling of 1011211033231 in words is "one trillion, eleven billion, two hundred eleven million, thirty-three thousand, two hundred thirty-one".