123011202125 has 32 divisors (see below), whose sum is σ = 176096873472. Its totient is φ = 84039120000.

The previous prime is 123011202107. The next prime is 123011202137. The reversal of 123011202125 is 521202110321.

It is not a de Polignac number, because 123011202125 - 2²² = 123007007821 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123011202097 and 123011202106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22256 + ... + 496505.

It is an arithmetic number, because the mean of its divisors is an integer number (5503027296).

Almost surely, 2^123011202125 is an apocalyptic number.

It is an amenable number.

123011202125 is a deficient number, since it is larger than the sum of its proper divisors (53085671347).

123011202125 is an equidigital number, since it uses as much as digits as its factorization.

123011202125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519054 (or 519044 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

Adding to 123011202125 its reverse (521202110321), we get a palindrome (644213312446).

The spelling of 123011202125 in words is "one hundred twenty-three billion, eleven million, two hundred two thousand, one hundred twenty-five".