31402352235444 has 12 divisors (see below), whose sum is σ = 73272155216064. Its totient is φ = 10467450745144.

The previous prime is 31402352235437. The next prime is 31402352235451. The reversal of 31402352235444 is 44453225320413.

It is an interprime number because it is at equal distance from previous prime (31402352235437) and next prime (31402352235451).

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×31402352235444² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31402352235396 and 31402352235405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1308431343132 + ... + 1308431343155.

It is an arithmetic number, because the mean of its divisors is an integer number (6106012934672).

Almost surely, 2^{31402352235444} is an apocalyptic number.

It is an amenable number.

31402352235444 is an abundant number, since it is smaller than the sum of its proper divisors (41869802980620).

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

31402352235444 is a wasteful number, since it uses less digits than its factorization.

31402352235444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2616862686294 (or 2616862686292 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 42.

Adding to 31402352235444 its reverse (44453225320413), we get a palindrome (75855577555857).

The spelling of 31402352235444 in words is "thirty-one trillion, four hundred two billion, three hundred fifty-two million, two hundred thirty-five thousand, four hundred forty-four".