10121321023 has 8 divisors (see below), whose sum is σ = 11049815376. Its totient is φ = 9194222400.

The previous prime is 10121321017. The next prime is 10121321027. The reversal of 10121321023 is 32012312101.

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

It is not a de Polignac number, because 10121321023 - 2³³ = 1531386431 is a prime.

It is a super-2 number, since 2×10121321023² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10121320988 and 10121321006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121321027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 333736 + ... + 362797.

It is an arithmetic number, because the mean of its divisors is an integer number (1381226922).

Almost surely, 2^10121321023 is an apocalyptic number.

10121321023 is a deficient number, since it is larger than the sum of its proper divisors (928494353).

10121321023 is a wasteful number, since it uses less digits than its factorization.

10121321023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697865.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 10121321023 its reverse (32012312101), we get a palindrome (42133633124).

The spelling of 10121321023 in words is "ten billion, one hundred twenty-one million, three hundred twenty-one thousand, twenty-three".