10002021123 has 8 divisors (see below), whose sum is σ = 13413115728. Its totient is φ = 6629470304.

The previous prime is 10002021121. The next prime is 10002021151. The reversal of 10002021123 is 32112020001.

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 10002021123 - 2¹ = 10002021121 is a prime.

It is a super-2 number, since 2×10002021123² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10002021099 and 10002021108.

It is not an unprimeable number, because it can be changed into a prime (10002021121) 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, 9635340 + ... + 9636377.

It is an arithmetic number, because the mean of its divisors is an integer number (1676639466).

Almost surely, 2^10002021123 is an apocalyptic number.

10002021123 is a deficient number, since it is larger than the sum of its proper divisors (3411094605).

10002021123 is a wasteful number, since it uses less digits than its factorization.

10002021123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19271893.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 10002021123 its reverse (32112020001), we get a palindrome (42114041124).

The spelling of 10002021123 in words is "ten billion, two million, twenty-one thousand, one hundred twenty-three".