20131402132 has 6 divisors (see below), whose sum is σ = 35229953738. Its totient is φ = 10065701064.

The previous prime is 20131402127. The next prime is 20131402141. The reversal of 20131402132 is 23120413102.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 20049427216 + 81974916 = 141596^2 + 9054^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2516425263 + ... + 2516425270.

Almost surely, 2^20131402132 is an apocalyptic number.

It is an amenable number.

20131402132 is a deficient number, since it is larger than the sum of its proper divisors (15098551606).

20131402132 is a wasteful number, since it uses less digits than its factorization.

20131402132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5032850537 (or 5032850535 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20131402132 its reverse (23120413102), we get a palindrome (43251815234).

The spelling of 20131402132 in words is "twenty billion, one hundred thirty-one million, four hundred two thousand, one hundred thirty-two".