2125043356261 has 16 divisors (see below), whose sum is σ = 2441188278144. Its totient is φ = 1812042074304.

The previous prime is 2125043356259. The next prime is 2125043356301. The reversal of 2125043356261 is 1626533405212.

It is not a de Polignac number, because 2125043356261 - 2¹ = 2125043356259 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2125043356561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15103111 + ... + 15243163.

It is an arithmetic number, because the mean of its divisors is an integer number (152574267384).

Almost surely, 2^{2125043356261} is an apocalyptic number.

It is an amenable number.

2125043356261 is a deficient number, since it is larger than the sum of its proper divisors (316144921883).

2125043356261 is a wasteful number, since it uses less digits than its factorization.

2125043356261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151260.

The product of its (nonzero) digits is 259200, while the sum is 40.

The spelling of 2125043356261 in words is "two trillion, one hundred twenty-five billion, forty-three million, three hundred fifty-six thousand, two hundred sixty-one".