102425512267121 has 4 divisors (see below), whose sum is σ = 102441634658532. Its totient is φ = 102409389875712.

The previous prime is 102425512267061. The next prime is 102425512267151. The reversal of 102425512267121 is 121762215524201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 83070263975521 + 19355248291600 = 9114289^2 + 4399460^2 .

It is a cyclic number.

It is not a de Polignac number, because 102425512267121 - 2⁴⁶ = 32056768089457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102425512267151) 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, 8061186176 + ... + 8061198881.

It is an arithmetic number, because the mean of its divisors is an integer number (25610408664633).

Almost surely, 2^{102425512267121} is an apocalyptic number.

It is an amenable number.

102425512267121 is a deficient number, since it is larger than the sum of its proper divisors (16122391411).

102425512267121 is an equidigital number, since it uses as much as digits as its factorization.

102425512267121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16122391410.

The product of its (nonzero) digits is 134400, while the sum is 41.

The spelling of 102425512267121 in words is "one hundred two trillion, four hundred twenty-five billion, five hundred twelve million, two hundred sixty-seven thousand, one hundred twenty-one".