20400123413324 has 48 divisors (see below), whose sum is σ = 37362673910016. Its totient is φ = 9734239411200.

The previous prime is 20400123413309. The next prime is 20400123413389. The reversal of 20400123413324 is 42331432100402.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57003104 + ... + 57359864.

It is an arithmetic number, because the mean of its divisors is an integer number (778389039792).

Almost surely, 2^{20400123413324} is an apocalyptic number.

It is an amenable number.

20400123413324 is a deficient number, since it is larger than the sum of its proper divisors (16962550496692).

20400123413324 is a wasteful number, since it uses less digits than its factorization.

20400123413324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363186 (or 363184 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 20400123413324 its reverse (42331432100402), we get a palindrome (62731555513726).

The spelling of 20400123413324 in words is "twenty trillion, four hundred billion, one hundred twenty-three million, four hundred thirteen thousand, three hundred twenty-four".