20401134352 has 10 divisors (see below), whose sum is σ = 39527197838. Its totient is φ = 10200567168.

The previous prime is 20401134319. The next prime is 20401134371. The reversal of 20401134352 is 25343110402.

It can be written as a sum of positive squares in only one way, i.e., 20278899216 + 122235136 = 142404^2 + 11056^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 637535433 + ... + 637535464.

Almost surely, 2^20401134352 is an apocalyptic number.

It is an amenable number.

20401134352 is a deficient number, since it is larger than the sum of its proper divisors (19126063486).

20401134352 is a wasteful number, since it uses less digits than its factorization.

20401134352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1275070905 (or 1275070899 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 20401134352 its reverse (25343110402), we get a palindrome (45744244754).

The spelling of 20401134352 in words is "twenty billion, four hundred one million, one hundred thirty-four thousand, three hundred fifty-two".