101011231320 has 64 divisors (see below), whose sum is σ = 304357068000. Its totient is φ = 26818695168.

The previous prime is 101011231313. The next prime is 101011231331. The reversal of 101011231320 is 23132110101.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 101011231320.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1810425 + ... + 1865384.

Almost surely, 2^101011231320 is an apocalyptic number.

101011231320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101011231320 is an abundant number, since it is smaller than the sum of its proper divisors (203345836680).

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

101011231320 is a wasteful number, since it uses less digits than its factorization.

101011231320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3676052 (or 3676048 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 101011231320 its reverse (23132110101), we get a palindrome (124143341421).

It can be divided in two parts, 10101 and 1231320, that added together give a palindrome (1241421).

The spelling of 101011231320 in words is "one hundred one billion, eleven million, two hundred thirty-one thousand, three hundred twenty".