31023134342040 has 64 divisors (see below), whose sum is σ = 93069779925600. Its totient is φ = 8272802322432.

The previous prime is 31023134342009. The next prime is 31023134342093. The reversal of 31023134342040 is 4024343132013.

It is a happy number.

It is a super-2 number, since 2×31023134342040² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 31023134341989 and 31023134342007.

It is a congruent number.

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, 47554704 + ... + 48202656.

Almost surely, 2^{31023134342040} is an apocalyptic number.

31023134342040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31023134342040 is an abundant number, since it is smaller than the sum of its proper divisors (62046645583560).

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

31023134342040 is a wasteful number, since it uses less digits than its factorization.

31023134342040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1046956 (or 1046952 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 31023134342040 its reverse (4024343132013), we get a palindrome (35047477474053).

The spelling of 31023134342040 in words is "thirty-one trillion, twenty-three billion, one hundred thirty-four million, three hundred forty-two thousand, forty".