31420214140403 has 24 divisors (see below), whose sum is σ = 34564172719104. Its totient is φ = 28540759256240.

The previous prime is 31420214140369. The next prime is 31420214140411. The reversal of 31420214140403 is 30404141202413.

It is a de Polignac number, because none of the positive numbers 2^k-31420214140403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31420214140433) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1369478750 + ... + 1369501692.

It is an arithmetic number, because the mean of its divisors is an integer number (1440173863296).

Almost surely, 2^{31420214140403} is an apocalyptic number.

31420214140403 is a deficient number, since it is larger than the sum of its proper divisors (3143958578701).

31420214140403 is a wasteful number, since it uses less digits than its factorization.

31420214140403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31615 (or 31604 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 31420214140403 its reverse (30404141202413), we get a palindrome (61824355342816).

The spelling of 31420214140403 in words is "thirty-one trillion, four hundred twenty billion, two hundred fourteen million, one hundred forty thousand, four hundred three".