1021131150 has 48 divisors (see below), whose sum is σ = 2727210864. Its totient is φ = 251354880.

The previous prime is 1021131149. The next prime is 1021131157. The reversal of 1021131150 is 511311201.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021131157) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 259879 + ... + 263778.

It is an arithmetic number, because the mean of its divisors is an integer number (56816893).

Almost surely, 2^1021131150 is an apocalyptic number.

1021131150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1021131150 is an abundant number, since it is smaller than the sum of its proper divisors (1706079714).

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

1021131150 is a wasteful number, since it uses less digits than its factorization.

1021131150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523685 (or 523680 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 15.

The square root of 1021131150 is about 31955.1427785889. The cubic root of 1021131150 is about 1006.9946770864.

Adding to 1021131150 its reverse (511311201), we get a palindrome (1532442351).

The spelling of 1021131150 in words is "one billion, twenty-one million, one hundred thirty-one thousand, one hundred fifty".