1021023133 has 12 divisors (see below), whose sum is σ = 1106520480. Its totient is φ = 941702736.

The previous prime is 1021023131. The next prime is 1021023149. The reversal of 1021023133 is 3313201201.

It is not a de Polignac number, because 1021023133 - 2¹ = 1021023131 is a prime.

It is a super-2 number, since 2×1021023133² = 2084976476242271378, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021023131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 343110 + ... + 346072.

It is an arithmetic number, because the mean of its divisors is an integer number (92210040).

Almost surely, 2^1021023133 is an apocalyptic number.

1021023133 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1021023133 is a deficient number, since it is larger than the sum of its proper divisors (85497347).

1021023133 is a wasteful number, since it uses less digits than its factorization.

1021023133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5028 (or 5015 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1021023133 is about 31953.4525990541. The cubic root of 1021023133 is about 1006.9591686278.

Adding to 1021023133 its reverse (3313201201), we get a palindrome (4334224334).

The spelling of 1021023133 in words is "one billion, twenty-one million, twenty-three thousand, one hundred thirty-three".