31451402130 has 16 divisors (see below), whose sum is σ = 75483365184. Its totient is φ = 8387040560.

The previous prime is 31451402113. The next prime is 31451402131. The reversal of 31451402130 is 3120415413.

It is a happy number.

It is a super-3 number, since 3×31451402130³ (a number of 32 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31451402130.

It is not an unprimeable number, because it can be changed into a prime (31451402131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 524190006 + ... + 524190065.

It is an arithmetic number, because the mean of its divisors is an integer number (4717710324).

Almost surely, 2^31451402130 is an apocalyptic number.

31451402130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31451402130 is an abundant number, since it is smaller than the sum of its proper divisors (44031963054).

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

31451402130 is a wasteful number, since it uses less digits than its factorization.

31451402130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1048380081.

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 31451402130 its reverse (3120415413), we get a palindrome (34571817543).

The spelling of 31451402130 in words is "thirty-one billion, four hundred fifty-one million, four hundred two thousand, one hundred thirty".