1500540451211 has 4 divisors (see below), whose sum is σ = 1518619251912. Its totient is φ = 1482461650512.

The previous prime is 1500540451183. The next prime is 1500540451253. The reversal of 1500540451211 is 1121540450051.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1500540451211 - 2¹⁰ = 1500540450187 is a prime.

It is a super-2 number, since 2×1500540451211² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1500540451261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9039400226 + ... + 9039400391.

It is an arithmetic number, because the mean of its divisors is an integer number (379654812978).

Almost surely, 2^{1500540451211} is an apocalyptic number.

1500540451211 is a deficient number, since it is larger than the sum of its proper divisors (18078800701).

1500540451211 is an equidigital number, since it uses as much as digits as its factorization.

1500540451211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18078800700.

The product of its (nonzero) digits is 4000, while the sum is 29.

The spelling of 1500540451211 in words is "one trillion, five hundred billion, five hundred forty million, four hundred fifty-one thousand, two hundred eleven".