1021427332351 has 16 divisors (see below), whose sum is σ = 1054918785024. Its totient is φ = 988455907584.

The previous prime is 1021427332271. The next prime is 1021427332361. The reversal of 1021427332351 is 1532337241201.

It is a cyclic number.

It is not a de Polignac number, because 1021427332351 - 2¹¹ = 1021427330303 is a prime.

It is a super-2 number, since 2×1021427332351² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021427332361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2969071 + ... + 3295183.

It is an arithmetic number, because the mean of its divisors is an integer number (65932424064).

Almost surely, 2^{1021427332351} is an apocalyptic number.

1021427332351 is a deficient number, since it is larger than the sum of its proper divisors (33491452673).

1021427332351 is a wasteful number, since it uses less digits than its factorization.

1021427332351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326910.

The product of its (nonzero) digits is 30240, while the sum is 34.

The spelling of 1021427332351 in words is "one trillion, twenty-one billion, four hundred twenty-seven million, three hundred thirty-two thousand, three hundred fifty-one".