31023030000 has 100 divisors (see below), whose sum is σ = 100146574088. Its totient is φ = 8272800000.

The previous prime is 31023029987. The next prime is 31023030001. The reversal of 31023030000 is 3032013.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (100).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31023030001) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 487051 + ... + 547050.

Almost surely, 2^31023030000 is an apocalyptic number.

31023030000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31023030000 is an abundant number, since it is smaller than the sum of its proper divisors (69123544088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31023030000 is a wasteful number, since it uses less digits than its factorization.

31023030000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1034132 (or 1034111 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 12.

Adding to 31023030000 its reverse (3032013), we get a palindrome (31026062013).

The spelling of 31023030000 in words is "thirty-one billion, twenty-three million, thirty thousand".