1012211334523 has 16 divisors (see below), whose sum is σ = 1046280057856. Its totient is φ = 978232036320.

The previous prime is 1012211334503. The next prime is 1012211334569. The reversal of 1012211334523 is 3254331122101.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1012211334523 is a prime.

It is a super-4 number, since 4×1012211334523⁴ (a number of 49 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1012211334491 and 1012211334500.

It is not an unprimeable number, because it can be changed into a prime (1012211334503) 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, 93397861 + ... + 93408697.

It is an arithmetic number, because the mean of its divisors is an integer number (65392503616).

Almost surely, 2^{1012211334523} is an apocalyptic number.

1012211334523 is a deficient number, since it is larger than the sum of its proper divisors (34068723333).

1012211334523 is a wasteful number, since it uses less digits than its factorization.

1012211334523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14674.

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 1012211334523 its reverse (3254331122101), we get a palindrome (4266542456624).

The spelling of 1012211334523 in words is "one trillion, twelve billion, two hundred eleven million, three hundred thirty-four thousand, five hundred twenty-three".