20611430134 has 16 divisors (see below), whose sum is σ = 31351278672. Its totient is φ = 10161099648.

The previous prime is 20611430131. The next prime is 20611430137. The reversal of 20611430134 is 43103411602.

It is an interprime number because it is at equal distance from previous prime (20611430131) and next prime (20611430137).

It is a junction number, because it is equal to n+sod(n) for n = 20611430099 and 20611430108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20611430131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 439482 + ... + 484114.

It is an arithmetic number, because the mean of its divisors is an integer number (1959454917).

Almost surely, 2^20611430134 is an apocalyptic number.

20611430134 is a deficient number, since it is larger than the sum of its proper divisors (10739848538).

20611430134 is a wasteful number, since it uses less digits than its factorization.

20611430134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47871.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 20611430134 its reverse (43103411602), we get a palindrome (63714841736).

The spelling of 20611430134 in words is "twenty billion, six hundred eleven million, four hundred thirty thousand, one hundred thirty-four".