20210104144 has 10 divisors (see below), whose sum is σ = 39157076810. Its totient is φ = 10105052064.

The previous prime is 20210104121. The next prime is 20210104151. The reversal of 20210104144 is 44140101202.

It can be written as a sum of positive squares in only one way, i.e., 18697827600 + 1512276544 = 136740^2 + 38888^2 .

It is a super-2 number, since 2×20210104144² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 631565739 + ... + 631565770.

It is an arithmetic number, because the mean of its divisors is an integer number (3915707681).

Almost surely, 2^20210104144 is an apocalyptic number.

It is an amenable number.

20210104144 is a deficient number, since it is larger than the sum of its proper divisors (18946972666).

20210104144 is a wasteful number, since it uses less digits than its factorization.

20210104144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1263131517 (or 1263131511 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 20210104144 its reverse (44140101202), we get a palindrome (64350205346).

The spelling of 20210104144 in words is "twenty billion, two hundred ten million, one hundred four thousand, one hundred forty-four".