20001402132 has 72 divisors (see below), whose sum is σ = 48320927424. Its totient is φ = 6438866688.

The previous prime is 20001402121. The next prime is 20001402133. The reversal of 20001402132 is 23120410002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20001402133) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2246193 + ... + 2255079.

It is an arithmetic number, because the mean of its divisors is an integer number (671123992).

Almost surely, 2^20001402132 is an apocalyptic number.

It is an amenable number.

20001402132 is an abundant number, since it is smaller than the sum of its proper divisors (28319525292).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20001402132 is a wasteful number, since it uses less digits than its factorization.

20001402132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9105 (or 9066 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 20001402132 its reverse (23120410002), we get a palindrome (43121812134).

The spelling of 20001402132 in words is "twenty billion, one million, four hundred two thousand, one hundred thirty-two".