1031211412 has 48 divisors (see below), whose sum is σ = 2259048960. Its totient is φ = 400140000.

The previous prime is 1031211409. The next prime is 1031211421. The reversal of 1031211412 is 2141121301.

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, 70639 + ... + 83977.

It is an arithmetic number, because the mean of its divisors is an integer number (47063520).

Almost surely, 2^1031211412 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 1031211412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1129524480).

1031211412 is an abundant number, since it is smaller than the sum of its proper divisors (1227837548).

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

1031211412 is a wasteful number, since it uses less digits than its factorization.

1031211412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13612 (or 13610 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 1031211412 is about 32112.4806266972. The cubic root of 1031211412 is about 1010.2974035139.

Adding to 1031211412 its reverse (2141121301), we get a palindrome (3172332713).

The spelling of 1031211412 in words is "one billion, thirty-one million, two hundred eleven thousand, four hundred twelve".