1021122312123 has 8 divisors (see below), whose sum is σ = 1361746851088. Its totient is φ = 680622990624.

The previous prime is 1021122311977. The next prime is 1021122312139. The reversal of 1021122312123 is 3212132211201.

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

It is not a de Polignac number, because 1021122312123 - 2¹⁶ = 1021122246587 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 1021122312123.

It is not an unprimeable number, because it can be changed into a prime (1021122312323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31285336 + ... + 31317957.

It is an arithmetic number, because the mean of its divisors is an integer number (170218356386).

Almost surely, 2^{1021122312123} is an apocalyptic number.

1021122312123 is a deficient number, since it is larger than the sum of its proper divisors (340624538965).

1021122312123 is an equidigital number, since it uses as much as digits as its factorization.

1021122312123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62608733.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 1021122312123 its reverse (3212132211201), we get a palindrome (4233254523324).

The spelling of 1021122312123 in words is "one trillion, twenty-one billion, one hundred twenty-two million, three hundred twelve thousand, one hundred twenty-three".