1021140045387 has 240 divisors, whose sum is σ = 2011363833600. Its totient is φ = 512016240960.

The previous prime is 1021140045319. The next prime is 1021140045391. The reversal of 1021140045387 is 7835400411201.

1021140045387 is a `hidden beast` number, since 1 + 0 + 2 + 114 + 0 + 0 + 4 + 538 + 7 = 666.

It is not a de Polignac number, because 1021140045387 - 2⁸ = 1021140045131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1021140045307) 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 239 ways as a sum of consecutive naturals, for example, 307663314 + ... + 307666632.

It is an arithmetic number, because the mean of its divisors is an integer number (8380682640).

Almost surely, 2^{1021140045387} is an apocalyptic number.

1021140045387 is a deficient number, since it is larger than the sum of its proper divisors (990223788213).

1021140045387 is an frugal number, since it uses more digits than its factorization.

1021140045387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3400 (or 3369 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

Adding to 1021140045387 its reverse (7835400411201), we get a palindrome (8856540456588).

The spelling of 1021140045387 in words is "one trillion, twenty-one billion, one hundred forty million, forty-five thousand, three hundred eighty-seven".