31020030102012 has 288 divisors, whose sum is σ = 86227387986432. Its totient is φ = 8497717143552.

The previous prime is 31020030101941. The next prime is 31020030102041. The reversal of 31020030102012 is 21020103002013.

It is a super-4 number, since 4×31020030102012⁴ (a number of 55 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 31020030101982 and 31020030102000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 11781248248 + ... + 11781250880.

Almost surely, 2^{31020030102012} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31020030102012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43113693993216).

31020030102012 is an abundant number, since it is smaller than the sum of its proper divisors (55207357884420).

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

31020030102012 is a wasteful number, since it uses less digits than its factorization.

31020030102012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3745 (or 3684 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 31020030102012 its reverse (21020103002013), we get a palindrome (52040133104025).

The spelling of 31020030102012 in words is "thirty-one trillion, twenty billion, thirty million, one hundred two thousand, twelve".