121123623521204 has 12 divisors (see below), whose sum is σ = 211989890424228. Its totient is φ = 60555083400000.

The previous prime is 121123623521171. The next prime is 121123623521239. The reversal of 121123623521204 is 402125326321121.

It can be written as a sum of positive squares in 2 ways, for example, as 23933601271204 + 97190022250000 = 4892198^2 + 9858500^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1682049647 + ... + 1682121654.

It is an arithmetic number, because the mean of its divisors is an integer number (17665824202019).

Almost surely, 2^{121123623521204} is an apocalyptic number.

It is an amenable number.

121123623521204 is a deficient number, since it is larger than the sum of its proper divisors (90866266903024).

121123623521204 is a wasteful number, since it uses less digits than its factorization.

121123623521204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3364180306 (or 3364180304 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

Adding to 121123623521204 its reverse (402125326321121), we get a palindrome (523248949842325).

The spelling of 121123623521204 in words is "one hundred twenty-one trillion, one hundred twenty-three billion, six hundred twenty-three million, five hundred twenty-one thousand, two hundred four".