31400422012102 has 128 divisors (see below), whose sum is σ = 57428699328000. Its totient is φ = 12687817190400.

The previous prime is 31400422012087. The next prime is 31400422012103. The reversal of 31400422012102 is 20121022400413.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31400422012103) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 204554274 + ... + 204707722.

It is an arithmetic number, because the mean of its divisors is an integer number (448661713500).

Almost surely, 2^{31400422012102} is an apocalyptic number.

31400422012102 is a deficient number, since it is larger than the sum of its proper divisors (26028277315898).

31400422012102 is a wasteful number, since it uses less digits than its factorization.

31400422012102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153782.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 31400422012102 its reverse (20121022400413), we get a palindrome (51521444412515).

The spelling of 31400422012102 in words is "thirty-one trillion, four hundred billion, four hundred twenty-two million, twelve thousand, one hundred two".