61106531331 has 8 divisors (see below), whose sum is σ = 86268044304. Its totient is φ = 38341352960.

The previous prime is 61106531293. The next prime is 61106531371. The reversal of 61106531331 is 13313560116.

61106531331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 61106531331 - 2²⁹ = 60569660419 is a prime.

It is a super-2 number, since 2×61106531331² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61106531371) 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, 599083590 + ... + 599083691.

It is an arithmetic number, because the mean of its divisors is an integer number (10783505538).

Almost surely, 2^61106531331 is an apocalyptic number.

61106531331 is a deficient number, since it is larger than the sum of its proper divisors (25161512973).

61106531331 is a wasteful number, since it uses less digits than its factorization.

61106531331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1198167301.

The product of its (nonzero) digits is 4860, while the sum is 30.

The spelling of 61106531331 in words is "sixty-one billion, one hundred six million, five hundred thirty-one thousand, three hundred thirty-one".