1011021301000 has 32 divisors (see below), whose sum is σ = 2365789846680. Its totient is φ = 404408520000.

The previous prime is 1011021300983. The next prime is 1011021301001. The reversal of 1011021301000 is 1031201101.

It can be written as a sum of positive squares in 4 ways, for example, as 603918602884 + 407102698116 = 777122^2 + 638046^2 .

It is a super-3 number, since 3×1011021301000³ (a number of 37 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (1011021301001) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 505509651 + ... + 505511650.

Almost surely, 2^{1011021301000} is an apocalyptic number.

1011021301000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1011021301000 is an abundant number, since it is smaller than the sum of its proper divisors (1354768545680).

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

1011021301000 is a wasteful number, since it uses less digits than its factorization.

1011021301000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011021322 (or 1011021308 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 10.

Adding to 1011021301000 its reverse (1031201101), we get a palindrome (1012052502101).

The spelling of 1011021301000 in words is "one trillion, eleven billion, twenty-one million, three hundred one thousand".