2535212123261 has 4 divisors (see below), whose sum is σ = 2535220812000. Its totient is φ = 2535203434524.

The previous prime is 2535212123203. The next prime is 2535212123293. The reversal of 2535212123261 is 1623212125352.

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 a de Polignac number, because none of the positive numbers 2^k-2535212123261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2535212120261) 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, 3890921 + ... + 4495518.

It is an arithmetic number, because the mean of its divisors is an integer number (633805203000).

Almost surely, 2^{2535212123261} is an apocalyptic number.

It is an amenable number.

2535212123261 is a deficient number, since it is larger than the sum of its proper divisors (8688739).

2535212123261 is an equidigital number, since it uses as much as digits as its factorization.

2535212123261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8688738.

The product of its digits is 43200, while the sum is 35.

The spelling of 2535212123261 in words is "two trillion, five hundred thirty-five billion, two hundred twelve million, one hundred twenty-three thousand, two hundred sixty-one".