20101231132 has 6 divisors (see below), whose sum is σ = 35177154488. Its totient is φ = 10050615564.

The previous prime is 20101231091. The next prime is 20101231159. The reversal of 20101231132 is 23113210102.

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, 2512653888 + ... + 2512653895.

Almost surely, 2^20101231132 is an apocalyptic number.

It is an amenable number.

20101231132 is a deficient number, since it is larger than the sum of its proper divisors (15075923356).

20101231132 is a wasteful number, since it uses less digits than its factorization.

20101231132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5025307787 (or 5025307785 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 20101231132 its reverse (23113210102), we get a palindrome (43214441234).

The spelling of 20101231132 in words is "twenty billion, one hundred one million, two hundred thirty-one thousand, one hundred thirty-two".