31403145150 has 144 divisors (see below), whose sum is σ = 94225417104. Its totient is φ = 7729966080.

The previous prime is 31403145133. The next prime is 31403145203. The reversal of 31403145150 is 5154130413.

It is a happy number.

31403145150 is a `hidden beast` number, since 3 + 140 + 3 + 1 + 4 + 515 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 58542 + ... + 257358.

Almost surely, 2^31403145150 is an apocalyptic number.

31403145150 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 31403145150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47112708552).

31403145150 is an abundant number, since it is smaller than the sum of its proper divisors (62822271954).

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

31403145150 is a wasteful number, since it uses less digits than its factorization.

31403145150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198857 (or 198840 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 31403145150 its reverse (5154130413), we get a palindrome (36557275563).

The spelling of 31403145150 in words is "thirty-one billion, four hundred three million, one hundred forty-five thousand, one hundred fifty".