31401322242430 has 48 divisors (see below), whose sum is σ = 65754417234960. Its totient is φ = 10765530091008.

The previous prime is 31401322242419. The next prime is 31401322242481. The reversal of 31401322242430 is 3424222310413.

It is a junction number, because it is equal to n+sod(n) for n = 31401322242392 and 31401322242401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6422926 + ... + 10200814.

It is an arithmetic number, because the mean of its divisors is an integer number (1369883692395).

Almost surely, 2^{31401322242430} is an apocalyptic number.

31401322242430 is an abundant number, since it is smaller than the sum of its proper divisors (34353094992530).

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

31401322242430 is a wasteful number, since it uses less digits than its factorization.

31401322242430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3794873 (or 3794866 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 31401322242430 its reverse (3424222310413), we get a palindrome (34825544552843).

The spelling of 31401322242430 in words is "thirty-one trillion, four hundred one billion, three hundred twenty-two million, two hundred forty-two thousand, four hundred thirty".