61373131112 has 32 divisors (see below), whose sum is σ = 115437312000. Its totient is φ = 30589977600.

The previous prime is 61373131103. The next prime is 61373131121. The reversal of 61373131112 is 21113137316.

61373131112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (61373131103) and next prime (61373131121).

It is a super-2 number, since 2×61373131112² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4198937 + ... + 4213527.

It is an arithmetic number, because the mean of its divisors is an integer number (3607416000).

Almost surely, 2^61373131112 is an apocalyptic number.

It is an amenable number.

61373131112 is a deficient number, since it is larger than the sum of its proper divisors (54064180888).

61373131112 is a wasteful number, since it uses less digits than its factorization.

61373131112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16217 (or 16213 counting only the distinct ones).

The product of its digits is 2268, while the sum is 29.

Adding to 61373131112 its reverse (21113137316), we get a palindrome (82486268428).

The spelling of 61373131112 in words is "sixty-one billion, three hundred seventy-three million, one hundred thirty-one thousand, one hundred twelve".