20403034150254 has 128 divisors (see below), whose sum is σ = 47840550912000. Its totient is φ = 5798441507040.

The previous prime is 20403034150159. The next prime is 20403034150267. The reversal of 20403034150254 is 45205143030402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 802024867 + ... + 802050305.

It is an arithmetic number, because the mean of its divisors is an integer number (373754304000).

Almost surely, 2^{20403034150254} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20403034150254, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23920275456000).

20403034150254 is an abundant number, since it is smaller than the sum of its proper divisors (27437516761746).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20403034150254 is a wasteful number, since it uses less digits than its factorization.

20403034150254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27523 (or 27509 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 33.

Adding to 20403034150254 its reverse (45205143030402), we get a palindrome (65608177180656).

The spelling of 20403034150254 in words is "twenty trillion, four hundred three billion, thirty-four million, one hundred fifty thousand, two hundred fifty-four".