20401400134 has 16 divisors (see below), whose sum is σ = 31184215920. Its totient is φ = 10006719840.

The previous prime is 20401400113. The next prime is 20401400143. The reversal of 20401400134 is 43100410402.

20401400134 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1065457 + ... + 1084435.

It is an arithmetic number, because the mean of its divisors is an integer number (1949013495).

Almost surely, 2^20401400134 is an apocalyptic number.

20401400134 is a deficient number, since it is larger than the sum of its proper divisors (10782815786).

20401400134 is a wasteful number, since it uses less digits than its factorization.

20401400134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29175.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 20401400134 its reverse (43100410402), we get a palindrome (63501810536).

The spelling of 20401400134 in words is "twenty billion, four hundred one million, four hundred thousand, one hundred thirty-four".