1021210032123 has 6 divisors (see below), whose sum is σ = 1475081157524. Its totient is φ = 680806688076.

The previous prime is 1021210032121. The next prime is 1021210032133. The reversal of 1021210032123 is 3212300121201.

1021210032123 is a `hidden beast` number, since 10 + 212 + 100 + 321 + 23 = 666.

It is not a de Polignac number, because 1021210032123 - 2¹ = 1021210032121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1021210032096 and 1021210032105.

It is not an unprimeable number, because it can be changed into a prime (1021210032121) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56733890665 + ... + 56733890682.

Almost surely, 2^{1021210032123} is an apocalyptic number.

1021210032123 is a deficient number, since it is larger than the sum of its proper divisors (453871125401).

1021210032123 is a wasteful number, since it uses less digits than its factorization.

1021210032123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113467781353 (or 113467781350 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1021210032123 its reverse (3212300121201), we get a palindrome (4233510153324).

The spelling of 1021210032123 in words is "one trillion, twenty-one billion, two hundred ten million, thirty-two thousand, one hundred twenty-three".