61230001111 has 16 divisors (see below), whose sum is σ = 62869524480. Its totient is φ = 59612232960.

The previous prime is 61230001093. The next prime is 61230001117. The reversal of 61230001111 is 11110003216.

It is a cyclic number.

It is not a de Polignac number, because 61230001111 - 2¹³ = 61229992919 is a prime.

It is a super-2 number, since 2×61230001111² (a number of 22 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 (61230001117) 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, 4391431 + ... + 4405351.

It is an arithmetic number, because the mean of its divisors is an integer number (3929345280).

Almost surely, 2^61230001111 is an apocalyptic number.

61230001111 is a deficient number, since it is larger than the sum of its proper divisors (1639523369).

61230001111 is a wasteful number, since it uses less digits than its factorization.

61230001111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14694.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 61230001111 its reverse (11110003216), we get a palindrome (72340004327).

The spelling of 61230001111 in words is "sixty-one billion, two hundred thirty million, one thousand, one hundred eleven".