1012211032123 has 8 divisors (see below), whose sum is σ = 1071796732992. Its totient is φ = 952630206336.

The previous prime is 1012211032109. The next prime is 1012211032139. The reversal of 1012211032123 is 3212301122101.

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 1012211032123 - 2²⁵ = 1012177477691 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1012211032123.

It is not an unprimeable number, because it can be changed into a prime (1012211032103) 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, 786915 + ... + 1625932.

It is an arithmetic number, because the mean of its divisors is an integer number (133974591624).

Almost surely, 2^{1012211032123} is an apocalyptic number.

1012211032123 is a deficient number, since it is larger than the sum of its proper divisors (59585700869).

1012211032123 is a wasteful number, since it uses less digits than its factorization.

1012211032123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2437541.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1012211032123 its reverse (3212301122101), we get a palindrome (4224512154224).

The spelling of 1012211032123 in words is "one trillion, twelve billion, two hundred eleven million, thirty-two thousand, one hundred twenty-three".