10520040401 has 8 divisors (see below), whose sum is σ = 11346423144. Its totient is φ = 9696107520.

The previous prime is 10520040379. The next prime is 10520040407. The reversal of 10520040401 is 10404002501.

It can be written as a sum of positive squares in 4 ways, for example, as 2709723025 + 7810317376 = 52055^2 + 88376^2 .

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 10520040401 - 2¹⁸ = 10519778257 is a prime.

It is a super-2 number, since 2×10520040401² (a number of 21 digits) contains 22 as substring.

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 10520040401.

It is not an unprimeable number, because it can be changed into a prime (10520040407) 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, 603536 + ... + 620721.

It is an arithmetic number, because the mean of its divisors is an integer number (1418302893).

Almost surely, 2^10520040401 is an apocalyptic number.

It is an amenable number.

10520040401 is a deficient number, since it is larger than the sum of its proper divisors (826382743).

10520040401 is a wasteful number, since it uses less digits than its factorization.

10520040401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1224931.

The product of its (nonzero) digits is 160, while the sum is 17.

Adding to 10520040401 its reverse (10404002501), we get a palindrome (20924042902).

The spelling of 10520040401 in words is "ten billion, five hundred twenty million, forty thousand, four hundred one".