103123451556261 has 12 divisors (see below), whose sum is σ = 149028300353088. Its totient is φ = 68715642937704.

The previous prime is 103123451556239. The next prime is 103123451556313. The reversal of 103123451556261 is 162655154321301.

It is a happy number.

103123451556261 is a `hidden beast` number, since 1 + 0 + 3 + 1 + 2 + 3 + 4 + 5 + 15 + 5 + 626 + 1 = 666.

It is not a de Polignac number, because 103123451556261 - 2¹¹ = 103123451554213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103123451556211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2777044275 + ... + 2777081408.

It is an arithmetic number, because the mean of its divisors is an integer number (12419025029424).

Almost surely, 2^{103123451556261} is an apocalyptic number.

It is an amenable number.

103123451556261 is a deficient number, since it is larger than the sum of its proper divisors (45904848796827).

103123451556261 is a wasteful number, since it uses less digits than its factorization.

103123451556261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5554127752 (or 5554127749 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 45.

The spelling of 103123451556261 in words is "one hundred three trillion, one hundred twenty-three billion, four hundred fifty-one million, five hundred fifty-six thousand, two hundred sixty-one".