61431123803 has 8 divisors (see below), whose sum is σ = 70212368640. Its totient is φ = 52651221480.

The previous prime is 61431123797. The next prime is 61431123811. The reversal of 61431123803 is 30832113416.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61431123803 - 2¹² = 61431119707 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61431123803.

It is not an unprimeable number, because it can be changed into a prime (61431123203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235583 + ... + 422328.

It is an arithmetic number, because the mean of its divisors is an integer number (8776546080).

Almost surely, 2^61431123803 is an apocalyptic number.

61431123803 is a deficient number, since it is larger than the sum of its proper divisors (8781244837).

61431123803 is a wasteful number, since it uses less digits than its factorization.

61431123803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671257.

The product of its (nonzero) digits is 10368, while the sum is 32.

The spelling of 61431123803 in words is "sixty-one billion, four hundred thirty-one million, one hundred twenty-three thousand, eight hundred three".