61142002230 has 32 divisors (see below), whose sum is σ = 146748132864. Its totient is φ = 16303719776.

The previous prime is 61142002213. The next prime is 61142002237. The reversal of 61142002230 is 3220024116.

It is a junction number, because it is equal to n+sod(n) for n = 61142002197 and 61142002206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61142002237) 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 15 ways as a sum of consecutive naturals, for example, 785029 + ... + 859391.

It is an arithmetic number, because the mean of its divisors is an integer number (4585879152).

Almost surely, 2^61142002230 is an apocalyptic number.

61142002230 is an abundant number, since it is smaller than the sum of its proper divisors (85606130634).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61142002230 is a wasteful number, since it uses less digits than its factorization.

61142002230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101780.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 61142002230 its reverse (3220024116), we get a palindrome (64362026346).

The spelling of 61142002230 in words is "sixty-one billion, one hundred forty-two million, two thousand, two hundred thirty".