1031201101320 has 64 divisors (see below), whose sum is σ = 3331572793920. Its totient is φ = 253834116864.

The previous prime is 1031201101213. The next prime is 1031201101331. The reversal of 1031201101320 is 231011021301.

It is a happy number.

It is a super-2 number, since 2×1031201101320² (a number of 25 digits) contains 22 as substring.

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 1031201101320.

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, 330511614 + ... + 330514733.

It is an arithmetic number, because the mean of its divisors is an integer number (52055824905).

Almost surely, 2^{1031201101320} is an apocalyptic number.

1031201101320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1031201101320 is an abundant number, since it is smaller than the sum of its proper divisors (2300371692600).

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

1031201101320 is a wasteful number, since it uses less digits than its factorization.

1031201101320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661026374 (or 661026370 counting only the distinct ones).

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

Adding to 1031201101320 its reverse (231011021301), we get a palindrome (1262212122621).

The spelling of 1031201101320 in words is "one trillion, thirty-one billion, two hundred one million, one hundred one thousand, three hundred twenty".