20103126432 has 48 divisors (see below), whose sum is σ = 53094494880. Its totient is φ = 6659926272.

The previous prime is 20103126431. The next prime is 20103126443. The reversal of 20103126432 is 23462130102.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (20103126431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 626707 + ... + 658002.

It is an arithmetic number, because the mean of its divisors is an integer number (1106135310).

Almost surely, 2^20103126432 is an apocalyptic number.

It is an amenable number.

20103126432 is an abundant number, since it is smaller than the sum of its proper divisors (32991368448).

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

20103126432 is a wasteful number, since it uses less digits than its factorization.

20103126432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1284885 (or 1284877 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 20103126432 its reverse (23462130102), we get a palindrome (43565256534).

The spelling of 20103126432 in words is "twenty billion, one hundred three million, one hundred twenty-six thousand, four hundred thirty-two".