31355045051 has 16 divisors (see below), whose sum is σ = 36011952000. Its totient is φ = 26999726400.

The previous prime is 31355045047. The next prime is 31355045101. The reversal of 31355045051 is 15054055313.

It is a cyclic number.

It is not a de Polignac number, because 31355045051 - 2² = 31355045047 is a prime.

It is a super-3 number, since 3×31355045051³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31355044999 and 31355045017.

It is not an unprimeable number, because it can be changed into a prime (31355045551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1874975 + ... + 1891623.

It is an arithmetic number, because the mean of its divisors is an integer number (2250747000).

Almost surely, 2^31355045051 is an apocalyptic number.

31355045051 is a deficient number, since it is larger than the sum of its proper divisors (4656906949).

31355045051 is a wasteful number, since it uses less digits than its factorization.

31355045051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25690.

The product of its (nonzero) digits is 22500, while the sum is 32.

The spelling of 31355045051 in words is "thirty-one billion, three hundred fifty-five million, forty-five thousand, fifty-one".