61130431453 has 16 divisors (see below), whose sum is σ = 77072518656. Its totient is φ = 47187250560.

The previous prime is 61130431441. The next prime is 61130431471. The reversal of 61130431453 is 35413403116.

It is a cyclic number.

It is not a de Polignac number, because 61130431453 - 2⁵ = 61130431421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61130431403) 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, 8188501 + ... + 8195962.

It is an arithmetic number, because the mean of its divisors is an integer number (4817032416).

Almost surely, 2^61130431453 is an apocalyptic number.

It is an amenable number.

61130431453 is a deficient number, since it is larger than the sum of its proper divisors (15942087203).

61130431453 is a wasteful number, since it uses less digits than its factorization.

61130431453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16384524.

The product of its (nonzero) digits is 12960, while the sum is 31.

Adding to 61130431453 its reverse (35413403116), we get a palindrome (96543834569).

The spelling of 61130431453 in words is "sixty-one billion, one hundred thirty million, four hundred thirty-one thousand, four hundred fifty-three".