31240242213000 has 64 divisors (see below), whose sum is σ = 97469555713920. Its totient is φ = 8330731256000.

The previous prime is 31240242212989. The next prime is 31240242213043. The reversal of 31240242213000 is 31224204213.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5206704036 + ... + 5206710035.

It is an arithmetic number, because the mean of its divisors is an integer number (1522961808030).

Almost surely, 2^{31240242213000} is an apocalyptic number.

31240242213000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31240242213000 is an abundant number, since it is smaller than the sum of its proper divisors (66229313500920).

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

31240242213000 is a wasteful number, since it uses less digits than its factorization.

31240242213000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10413414095 (or 10413414081 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 31240242213000 its reverse (31224204213), we get a palindrome (31271466417213).

The spelling of 31240242213000 in words is "thirty-one trillion, two hundred forty billion, two hundred forty-two million, two hundred thirteen thousand".