1021131203130 has 128 divisors (see below), whose sum is σ = 2819843389440. Its totient is φ = 262675146240.

The previous prime is 1021131203119. The next prime is 1021131203167. The reversal of 1021131203130 is 313021311201.

1021131203130 is a `hidden beast` number, since 10 + 211 + 312 + 0 + 3 + 130 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2424924 + ... + 2814696.

It is an arithmetic number, because the mean of its divisors is an integer number (22030026480).

Almost surely, 2^{1021131203130} is an apocalyptic number.

1021131203130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1021131203130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1409921694720).

1021131203130 is an abundant number, since it is smaller than the sum of its proper divisors (1798712186310).

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

1021131203130 is a wasteful number, since it uses less digits than its factorization.

1021131203130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390133 (or 390127 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 1021131203130 its reverse (313021311201), we get a palindrome (1334152514331).

The spelling of 1021131203130 in words is "one trillion, twenty-one billion, one hundred thirty-one million, two hundred three thousand, one hundred thirty".