123461245261 has 4 divisors (see below), whose sum is σ = 125553808800. Its totient is φ = 121368681724.

The previous prime is 123461245241. The next prime is 123461245279. The reversal of 123461245261 is 162542164321.

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 123461245261 - 2¹³ = 123461237069 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 123461245261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123461245231) 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, 1046281681 + ... + 1046281798.

It is an arithmetic number, because the mean of its divisors is an integer number (31388452200).

Almost surely, 2^123461245261 is an apocalyptic number.

It is an amenable number.

123461245261 is a deficient number, since it is larger than the sum of its proper divisors (2092563539).

123461245261 is an equidigital number, since it uses as much as digits as its factorization.

123461245261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2092563538.

The product of its digits is 69120, while the sum is 37.

The spelling of 123461245261 in words is "one hundred twenty-three billion, four hundred sixty-one million, two hundred forty-five thousand, two hundred sixty-one".