20611152023 has 16 divisors (see below), whose sum is σ = 25937190144. Its totient is φ = 15910532160.

The previous prime is 20611151999. The next prime is 20611152043. The reversal of 20611152023 is 32025111602.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20611152023 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20611152023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20611152043) 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, 1242590 + ... + 1259067.

It is an arithmetic number, because the mean of its divisors is an integer number (1621074384).

Almost surely, 2^20611152023 is an apocalyptic number.

20611152023 is a deficient number, since it is larger than the sum of its proper divisors (5326038121).

20611152023 is a wasteful number, since it uses less digits than its factorization.

20611152023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2501782.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 20611152023 its reverse (32025111602), we get a palindrome (52636263625).

The spelling of 20611152023 in words is "twenty billion, six hundred eleven million, one hundred fifty-two thousand, twenty-three".