31143002324212 has 24 divisors (see below), whose sum is σ = 54526989265056. Its totient is φ = 15563863163808.

The previous prime is 31143002324197. The next prime is 31143002324227. The reversal of 31143002324212 is 21242320034113.

It is an interprime number because it is at equal distance from previous prime (31143002324197) and next prime (31143002324227).

It is a super-2 number, since 2×31143002324212² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 243139978 + ... + 243268030.

It is an arithmetic number, because the mean of its divisors is an integer number (2271957886044).

Almost surely, 2^{31143002324212} is an apocalyptic number.

It is an amenable number.

31143002324212 is a deficient number, since it is larger than the sum of its proper divisors (23383986940844).

31143002324212 is a wasteful number, since it uses less digits than its factorization.

31143002324212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157407 (or 157405 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 31143002324212 its reverse (21242320034113), we get a palindrome (52385322358325).

The spelling of 31143002324212 in words is "thirty-one trillion, one hundred forty-three billion, two million, three hundred twenty-four thousand, two hundred twelve".