20311030121332 has 48 divisors (see below), whose sum is σ = 37280626382160. Its totient is φ = 9673285248000.

The previous prime is 20311030121311. The next prime is 20311030121341. The reversal of 20311030121332 is 23312103011302.

It can be written as a sum of positive squares in 8 ways, for example, as 3037330926436 + 17273699194896 = 1742794^2 + 4156164^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6303219 + ... + 8963962.

It is an arithmetic number, because the mean of its divisors is an integer number (776679716295).

Almost surely, 2^{20311030121332} is an apocalyptic number.

It is an amenable number.

20311030121332 is a deficient number, since it is larger than the sum of its proper divisors (16969596260828).

20311030121332 is a wasteful number, since it uses less digits than its factorization.

20311030121332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15267412 (or 15267410 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 20311030121332 its reverse (23312103011302), we get a palindrome (43623133132634).

The spelling of 20311030121332 in words is "twenty trillion, three hundred eleven billion, thirty million, one hundred twenty-one thousand, three hundred thirty-two".