2151533502113 has 4 divisors (see below), whose sum is σ = 2151537206448. Its totient is φ = 2151529797780.

The previous prime is 2151533502103. The next prime is 2151533502133. The reversal of 2151533502113 is 3112053351512.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2151533502113 - 2³⁰ = 2150459760289 is a prime.

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 2151533502113.

It is not an unprimeable number, because it can be changed into a prime (2151533502103) 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, 770303 + ... + 2212788.

It is an arithmetic number, because the mean of its divisors is an integer number (537884301612).

Almost surely, 2^{2151533502113} is an apocalyptic number.

It is an amenable number.

2151533502113 is a deficient number, since it is larger than the sum of its proper divisors (3704335).

2151533502113 is an equidigital number, since it uses as much as digits as its factorization.

2151533502113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3704334.

The product of its (nonzero) digits is 13500, while the sum is 32.

Adding to 2151533502113 its reverse (3112053351512), we get a palindrome (5263586853625).

The spelling of 2151533502113 in words is "two trillion, one hundred fifty-one billion, five hundred thirty-three million, five hundred two thousand, one hundred thirteen".