61021002261530 has 32 divisors (see below), whose sum is σ = 113326248208320. Its totient is φ = 23641756951680.

The previous prime is 61021002261511. The next prime is 61021002261547. The reversal of 61021002261530 is 3516220012016.

It is a junction number, because it is equal to n+sod(n) for n = 61021002261493 and 61021002261502.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 535308884 + ... + 535422863.

It is an arithmetic number, because the mean of its divisors is an integer number (3541445256510).

Almost surely, 2^{61021002261530} is an apocalyptic number.

61021002261530 is a deficient number, since it is larger than the sum of its proper divisors (52305245946790).

61021002261530 is a wasteful number, since it uses less digits than its factorization.

61021002261530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1070731934.

The product of its (nonzero) digits is 4320, while the sum is 29.

Adding to 61021002261530 its reverse (3516220012016), we get a palindrome (64537222273546).

The spelling of 61021002261530 in words is "sixty-one trillion, twenty-one billion, two million, two hundred sixty-one thousand, five hundred thirty".