31101200030 has 8 divisors (see below), whose sum is σ = 55982160072. Its totient is φ = 12440480008.

The previous prime is 31101200029. The next prime is 31101200033. The reversal of 31101200030 is 3000210113.

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

It is a junction number, because it is equal to n+sod(n) for n = 31101199984 and 31101200020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31101200033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1555059992 + ... + 1555060011.

It is an arithmetic number, because the mean of its divisors is an integer number (6997770009).

Almost surely, 2^31101200030 is an apocalyptic number.

31101200030 is a deficient number, since it is larger than the sum of its proper divisors (24880960042).

31101200030 is a wasteful number, since it uses less digits than its factorization.

31101200030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3110120010.

The product of its (nonzero) digits is 18, while the sum is 11.

Adding to 31101200030 its reverse (3000210113), we get a palindrome (34101410143).

The spelling of 31101200030 in words is "thirty-one billion, one hundred one million, two hundred thousand, thirty".