10510001001 has 24 divisors (see below), whose sum is σ = 16084897920. Its totient is φ = 6590088576.

The previous prime is 10510000999. The next prime is 10510001009. The reversal of 10510001001 is 10010001501.

It is not a de Polignac number, because 10510001001 - 2¹ = 10510000999 is a prime.

It is a super-2 number, since 2×10510001001² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (10510001009) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 213820 + ... + 258338.

It is an arithmetic number, because the mean of its divisors is an integer number (670204080).

Almost surely, 2^10510001001 is an apocalyptic number.

It is an amenable number.

10510001001 is a deficient number, since it is larger than the sum of its proper divisors (5574896919).

10510001001 is a wasteful number, since it uses less digits than its factorization.

10510001001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46085 (or 46082 counting only the distinct ones).

The product of its (nonzero) digits is 5, while the sum is 9.

Adding to 10510001001 its reverse (10010001501), we get a palindrome (20520002502).

The spelling of 10510001001 in words is "ten billion, five hundred ten million, one thousand, one".