20112402134 has 32 divisors (see below), whose sum is σ = 33764217984. Its totient is φ = 8908073280.

The previous prime is 20112402127. The next prime is 20112402137. The reversal of 20112402134 is 43120421102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20112402137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57857 + ... + 208739.

It is an arithmetic number, because the mean of its divisors is an integer number (1055131812).

Almost surely, 2^20112402134 is an apocalyptic number.

20112402134 is a deficient number, since it is larger than the sum of its proper divisors (13651815850).

20112402134 is a wasteful number, since it uses less digits than its factorization.

20112402134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151052.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 20112402134 its reverse (43120421102), we get a palindrome (63232823236).

The spelling of 20112402134 in words is "twenty billion, one hundred twelve million, four hundred two thousand, one hundred thirty-four".